x = . (2) - · pdf fileiv 3. jennifer made x cakes. she put 4 sweets on top of each cake....

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IV 1. A straight line has equation y = 4x 5. (a) Find the value of x when y = 1. x = …………………………. (2) (b) Write down the equation of the straight line that is parallel to y = 4x 5 and passes through the point (0, 3). ……………………………… (2) (c) Rearrange the equation y = 4x 5 to find x in terms of y. x = …………………………. (2) (Total 6 marks)

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Page 1: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

1. A straight line has equation y = 4x – 5.

(a) Find the value of x when y = 1.

x = …………………………. (2)

(b) Write down the equation of the straight line that is parallel to y = 4x – 5 and passes

through the point (0, 3).

……………………………… (2)

(c) Rearrange the equation y = 4x – 5 to find x in terms of y.

x = …………………………. (2)

(Total 6 marks)

Page 2: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

2. The table shows some rows of a number pattern.

Row 1 1 = 2

21

Row 2 1 + 2 = 2

32

Row 3 1 + 2 + 3 = 2

43

Row 4 1 + 2 + 3 + 4

Row 8

(a) In the table, complete row 4 of the number pattern.

(1)

(b) In the table, complete row 8 of the number pattern. (1)

(c) Work out the sum of the first 100 whole numbers.

..................................... (1)

(d) Write down an expression, in terms of n, for the sum of the first n whole numbers.

................................. (2)

(Total 5 marks)

Page 3: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

3. Jennifer made x cakes.

She put 4 sweets on top of each cake.

(a) Write down an expression, in terms of x, for the number of sweets she used.

…………………………….. (1)

Paul made 3 more cakes than Jennifer.

(b) Write down an expression, in terms of x, for the number of cakes Paul made.

………………………….. (1)

Paul also put 4 sweets on each of his cakes.

(c) Write down an expression, in terms of x, for the number of sweets Paul used.

…………………………….. (1)

(Total 3 marks)

Page 4: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

4. (a) Solve 7x + 18 = 74

x = ……………………… (2)

(b) Solve 4(2y – 5) = 32

y = ……………………… (2)

(c) Solve 5p + 7 = 3(4 – p)

p = ……………………… (3)

(Total 7 marks)

Page 5: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

5. (a) Simplify 4x + 7y + 2x – 3y

………………………… (2)

(b) Simplify 2pq + pq

………………………… (1)

(c) Factorise 3t – 12

………………………… (1)

(d) Expand and simplify 3(2x – 1) – 2(2x – 3)

………………………… (2)

(Total 6 marks)

Page 6: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

6.

12

11

10

9

8

7

6

5

4

3

2

1

–1

–2

–3

–4

–5

–6

–5 –4 –3 –2 –1 1 2 3 4 5 6 7 8 9

A

x

y

O

Shape A has a line of symmetry.

(a) Write down the equation of this line of symmetry.

………………………… (1)

(b) Reflect shape A in the x-axis to give shape B.

Draw and label shape B. (1)

(c) Enlarge shape A by scale factor 2, centre O, to give shape C.

Draw and label shape C. (3)

(Total 5 marks)

Page 7: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

7. (i) Solve the inequality

5x – 7 < 2x – 1

………………………

(ii) On the number line, represent the solution set to part (i).

–5 –4 –3 –2 –1 0 1 2 3 4 5

(Total 3 marks)

8. (a) Complete the table for y = x2 – 3x + 1

x –2 –1 0 1 2 3 4

y 11 1 –1 1 5

(2)

(b) On the grid below, draw the graph of y = x2 – 3x + 1

(2)

Page 8: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

12

11

10

9

8

7

6

5

4

3

2

1

–1

–2

–3

–4

–5

–2 –1 1 2 3 4 x

y

O

(c) Use your graph to find an estimate for the minimum value of y.

y = …………………… (1)

(Total 5 marks)

Page 9: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

9. Martin cleaned his swimming pool.

He hired a cleaning machine to do this job.

The cost of hiring the cleaning machine was

£35.50 for the first day,

then £18.25 for each extra day.

Martin’s total cost of hiring the machine was £163.25

(a) For how many days did Martin hire the machine?

.................. days (3)

Martin had to buy some cleaning materials.

The cost of the cleaning materials was £64.00 plus VAT at 172

1%.

(b) Work out the total cost of the cleaning materials.

£ ....................... (2)

Martin filled the pool with 54 000 gallons of water.

He paid £2.38 for each 1000 gallons of water.

(c) Work out the total amount he paid for 54 000 gallons of water.

£ ....................... (2)

(Total 7 marks)

Page 10: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

10. (a) Solve 20y – 16 = 18y – 9

y = .................... (3)

(b) Solve 3

–40 x = 4 + x

x = .................... (3)

(Total 6 marks)

11. Eggs are sold in boxes.

A small box holds 6 eggs.

A large box holds 12 eggs.

Hina buys x small boxes of eggs.

Hina also buys 4 less of the large boxes of eggs than the small boxes.

(a) Find, in terms of x, the total number of eggs in the large boxes that Hina buys.

.......................... (1)

(b) Find, in terms of x, the total number of eggs that Hina buys.

Give your answer in its simplest form.

.......................... (2)

(Total 3 marks)

Page 11: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

12. (a) Solve x + 2x = 12

x = ............................. (1)

(b) Solve 2y – 1 = 13

y = ............................. (2)

(Total 3 marks)

13. P, Q and R are three stations on a railway line.

P Q R

26 miles 4 miles

PQ = 26 miles.

QR = 4 miles.

A passenger train leaves P at 12 00. It arrives at Q at 12 30.

Information about the journey from P to Q is shown on the travel graph opposite.

The passenger train stops at Q for 10 minutes.

It then returns to P at the same speed as on the journey from P to Q.

(a) On the grid, complete the travel graph for this train. (2)

A goods train leaves R at 12 00.

It arrives at P at 13 00.

(b) On the grid, draw the travel graph for the goods train. (1)

Page 12: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

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(c) Write down the distance from P where the goods train passes the passenger train.

............................ miles (1)

Distance(miles)from P

R

Q

P

30

28

26

24

22

20

18

16

14

12

10

8

6

4

2

012 00 12 30 13 00 13 30 14 00

Time of Day (Total 4 marks)

14. Jo buys 8 cups and 8 mugs.

A cup costs £x.

A mug costs £(x + 2)

(a) Write down an expression, in terms of x, for the total cost, in pounds, of 8 cups and

8 mugs.

£.............................. (2)

Page 13: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

The total cost of 8 cups and 8 mugs is £72

(b) (i) Express this information as an equation in terms of x.

.................................... (1)

(ii) Solve your equation to find the cost of a cup and the cost of a mug.

Cost of a cup £ ..............................

Cost of a mug £ .............................. (4)

(Total 7 marks)

Page 14: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

15.

y =

xtr

xtr

sin

sin

r = 8.8

t = 7.2

x = 40

Calculate the value of y. Give your answer correct to 3 significant figures.

y = ............................ (Total 3 marks)

16. (a) Solve 4(x + 3) = 6

x = …………………. (3)

Page 15: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

(b) Make t the subject of the formula v = u + 5t

t = …………………. (2)

(Total 5 marks)

17. (a) Simplify a3 a

4

……………………. (1)

(b) Simplify 3x2y 5xy

3

……………………. (2)

(c) Simplify 1

)1( 2

x

x

……………………. (1)

(d) Factorise x2 – 9

……………………. (1)

(Total 5 marks)

Page 16: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

18. Draw the graph of y = 5x 2 on the grid below.

10

8

6

4

2

–2

–4

–6

–8

–10

–2 –1 1 2x

O

y

(Total 3 marks)

19. Simplify fully

(i) 54 mm

……………………………..

(ii) 26 pp

………………………………

(iii) 3

62

q

qq

………………………………

(iv) 83 25 xyyx

Page 17: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

………………………………

(v)

8

842

k

k

…………………………….. (Total 6 marks)

20. A straight line has equation 54 xy .

(a) Write down the equation of the straight line that is parallel to 54 xy and passes

through the point (0, 3).

……………………….. (2)

(b) Rearrange the equation 54 xy to find x in terms of y.

x = …………………….. (2)

(Total 4 marks)

21. (a) Simplify

8x + 5y – 3x + y

…………………………… (2)

Page 18: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

(b) Solve

2x – 5 = 4

x = …………………………… (2)

(c) Factorise

3m + 15

…………………………… (1)

(Total 5 marks)

22. Make c the subject of the formula a = 3c – 4

c = …………………………… (Total 2 marks)

Page 19: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

23. James left home at 10 00 am.

He walked to the swimming pool.

On the way to the swimming pool he stopped to talk to a friend.

Here is the distance-time graph for his complete journey.

5

4

3

2

1

0

10 00 11 00 12 00Time

Distance in kmfrom

James’ home

(a) For how many minutes did James stop and talk to his friend?

…………………………… minutes (1)

(b) What is the distance from James’ home to the swimming pool?

…………………………… km (1)

(Total 2 marks)

24. Solve the inequality 3x + 2 > –7

............................ (Total 2 marks)

Page 20: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

25. A straight line has equation y = 2

1x + 1

The point P lies on the straight line.

P has a y-coordinate of 5.

(a) Find the x-coordinate of P.

............................ (2)

(b) Write down the equation of a different straight line that is parallel to y = 2

1x + 1

............................ (1)

(c) Rearrange y = ax + c to make x the subject.

x = ...................... (2)

(Total 5 marks)

26. Factorise 9x + 12

………………….. (Totak 1mark)

27. (a) Factorise x2 + x

…………….. (1)

Page 21: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

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(b) Factorise y2 2y 35

……………………………. (2)

(Total 3 marks)

28.

P A C Q

B D

2 ºx( + 15)ºx

Diagram NOT accurately drawn

PACQ is a straight line.

AB and CD are parallel.

Angle PAB = (2x)°.

Angle QCD = (x + 15)°.

Work out the value of x.

x = ……………… (Total 3 marks)

29. (a) Complete the table of values for y = 3x 2

x 3 2 1 0 1 2 3

y 11 5 7

(2)

Page 22: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

(b) On the grid below, draw the graph of y = 3x 2

O x

y

12

10

8

6

4

2

–2

–4

–6

–8

–10

–12

–3 –2 –1 1 2 3

(2)

(Total 4 marks)

30. Factorise x2 10x

……..………………….. (Total 1 mark)

31. (a) Solve 3x – 2 = 22

x = .................... (2)

Page 23: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

(b) Solve 20y – 16 = 18y – 9

y = .................... (3)

(Total 5 marks)

32. Eggs are sold in boxes.

A small box holds 6 eggs.

A large box holds 12 eggs.

Hina buys x small boxes of eggs.

Hina also buys 4 less of the large boxes of eggs than the small boxes.

(a) Find, in terms of x, the total number of eggs in the large boxes that Hina buys.

.......................... (1)

(b) Find, in terms of x, the total number of eggs that Hina buys.

Give your answer in its simplest form.

.......................... (2)

(Total 3 marks)

33. A straight line has equation y = 2(3 – 4x)

Find the gradient of the straight line.

.......................... (Total 2 marks)

Page 24: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

34. P = 3a + 5b

a = 5.8

b = –3.4

Work out the value of P.

P = .......................... (Total 2 marks)

35. C = 2p – 5q

p = –3

q = 4

Work out the value of C.

C = .......................... (Total 2 marks)

36. (a) Expand and simplify (3x + 2)(4x + 1)

............................................ (2)

(b) Factorise completely 3x2 + 6xy

............................ (2)

(Total 4 marks)

37. (a) Expand y(y + 5)

.......................... (1)

Page 25: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

(b) Factorise 10x – 6

.......................... (1)

(Total 2 marks)

38. Solve 5(x + 8) = 2

47 x

x = ............................ (Total 4 marks)

Page 26: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

39. Alex has a mobile phone.

Each month he pays

13.4p for each minute he uses his mobile phone

and

a fixed charge of £18.75

In January Alex uses his mobile phone for 405 minutes.

Work out the total amount Alex pays.

£ ............................... (Total 3 marks)

40. Make p the subject of the formula m = 3n + 2p

p = ............................... (Total 2 marks)

41. Solve 5x + 3 > 19

............................ (Total 2 marks)

Page 27: x = . (2) -   · PDF fileIV 3. Jennifer made x cakes. She put 4 sweets on top of each cake. (a) Write down an expression, in terms of x, for the number of sweets she used

IV

42. A man left home at 12 noon to go for a cycle ride.

The travel graph represents part of the man’s journey.

At 12.45pm the man stopped for a rest.

(a) For how many minutes did he rest?

…………… minutes (1)

The man stopped for another rest at 2pm.

He rested for one hour.

Then he cycled home at a steady speed. It took him 2 hours.

(b) Complete the travel graph. (2)

(Total 3 marks)