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Name_________________________________________ Date____________________ Class___________________
Point-Slope FormWrite an equation in POINT-SLOPE form for the line with the given slope that contains the given point.
1. slope 3; (4, 2) 2. slope 1; (6, 1)
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Graph the line described by each equation.
3. y + 2 (x 6) 4. y + 3 2 (x 4)
Write the equation that describes the line in slope-intercept form.
5. slope 4; (1, 3) is on the line 6. slope (8, 5) is on the line
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7. (2, 1) and (0, 7) are on the line 8. (6, 6) and (2, 2) are on the line
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Find the intercepts of the line that contains each pair of points.9. (1, 4) and (6, 10) __________________ 10. (3, 4) and (6, 16) __________________
11. The cost of internet access at a cafe is a function of time.The costs for 8, 25, and 40 minutes are shown. Write an equationin slope-intercept form that represents the function. Then find thecost of surfing the web at the cafe for one hour._________________________________________
Write the equation that describes each line in SLOPE-INTERCEPT form.
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Algebra 2
Time (min) 8 25 40
Cost ($) 4.36 7.25 9.80
Name_________________________________________ Date____________________ Class___________________
12.slope y-intercept 1 13. slope 3, (3, 4) is on the line.
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14. slope 0; y-intercept 8 15. slope (7, 8) is on the line.
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16. The line that passes through (1, 5) and(4, 4). (Hint: Find the slope first.) _____________________________
Write each equation in SLOPE-INTERCEPT form. Then graph the line described by the equation.17. y 2 3x 18. x y 2 19. 2y 3x 4
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20. The Johnsons are putting new carpet in their home.Installation is $300 and the carpeting costs $4 persquare foot. The total price of the job as a function ofarea is shown in the graph.
a.Write an equation that represents the total price asa function of area. __________________________________
b.Identify the slope and y-intercept and describe theirmeanings. ________________________________________________________________________________________________
c.Find the total cost if the area is 375 square feet. ______________________________________________________
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Algebra 2
Name_________________________________________ Date____________________ Class___________________
Practice BPoint-Slope Form
Write an equation in point-slope form for the line with the given slope that contains the given point.
1. slope 3; (4, 2) 2. slope 1; (6, 1)
y – 2 3(x 4) y 1 –(x – 6)Graph the line described by each equation.
3. y + 2 (x 6) 4. y + 3 2 (x 4)
Write the equation that describes the line in slope-intercept form.
5. slope 4; (1, 3) is on the line 6. slope (8, 5) is on the line
y –4x 1 y x – 17. (2, 1) and (0, 7) are on the line 8. (6, 6) and (2, 2) are on the line
y 4x – 7 y x – 3Find the intercepts of the line that contains each pair of points.
9. (1, 4) and (6, 10) x-int: 1, y-int: –2 10. (3, 4) and (6, 16) x-int:6, y-int: 811. The cost of internet access at a cafe is a function of time.
The costs for 8, 25, and 40 minutes are shown. Write an equationin slope-intercept form that represents the function. Then find thecost of surfing the web at the cafe for one hour.
y 0.17x 3; $13.20
Original content Copyright © by Holt McDougal. Additions and changes to the original content are the responsibility of the instructor.
Holt McDougal Algebra 2
Time (min) 8 25 40
Cost ($) 4.36 7.25 9.80
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