x and y vary directly. if x = 4 and y = 12, then what will x be if y = 56? is this a function?

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1) X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? 2) Is this a function? 3) 7 – 3(x + 2) = 4x +16 – 2x

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X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function? 7 – 3(x + 2) = 4x +16 – 2x What does logophobia mean?. Practice. Solve: 4 < 2x – 8 < 15. Simplify: -(4x + 12) + 5(2x – 16). - PowerPoint PPT Presentation

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Page 1: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

1) X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56?

2) Is this a function?

3) 7 – 3(x + 2) = 4x +16 – 2x

4) What does logophobia mean?

Page 2: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

Practice

Page 3: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

Solve:4 < 2x – 8 < 15

Page 4: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

Simplify:-(4x + 12) + 5(2x – 16)

Page 5: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

There are about 200 calories in 50 grams of Swiss cheese. Trey Songz ate 70 grams of this cheese. About how many calories were in the cheese that he ate if the number of calories varies directly with the weight of the cheese?

Page 6: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

The following table is an inverse variation. Fill in the missing spaces.

Page 7: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

Function or Not?

Page 8: X and y vary directly. If x = 4 and y = 12, then what will x be if y = 56? Is this a function?

If f(x) = x2 + 4x and g(x) = 5 – 3x, find the following.

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