SMS Alg Quiz #3 Review

by Malia Rivera

| 30 QuestionsDirections for #1-12: Tell whether the equation represents direct variation, inverse variation, or neither.

1

1

3x + y = 6

Inverse

Direct

Neither

I'm not sure

2

1

y = 7x

Inverse

Direct

Neither

I'm not sure

3

1

xy = 8

Inverse

Direct

Neither

I'm not sure

4

1

Inverse

Direct

Neither

I'm not sure

5

1

y = -2x

Inverse

Direct

Neither

I'm not sure

6

1

x = 7y

Inverse

Direct

Neither

I'm not sure

7

1

Inverse

Direct

Neither

I'm not sure

8

1

Inverse

Direct

Neither

I'm not sure

9

1

Inverse

Direct

Neither

I'm not sure

10

1

Inverse

Direct

Neither

I'm not sure

11

1

Inverse

Direct

Neither

I'm not sure

12

1

Inverse

Direct

Neither

I'm not sure

Given that y varies directly with x, use the specified values to write an inverse variation equation that relates x and y. Then find the value of y when x =3.

13

1

(Follow directions above) x = 5, y = 25

Just write the number for your answer

14

1

(Follow directions above) x = 3, y = 18

Just write the number for your answer

15

1

(Follow directions above) x = 25, y = 250

Just write the number for your answer

Given that y varies inversely with x, use the specified values to write an inverse variation equation that relates x and y. Then find the value of y when x =3.

16

1

(Follow directions above) x = 4, y = 3

Just write the number for your answer

17

1

(Follow directions above) x = 10, y = 6

Just write the number for your answer

18

1

(Follow directions above) x = 6, y = 6

Just write the number for your answer

19

1

(Follow directions above) x = -5, y = 9

Just write the number for your answer

20

1

(Follow directions above) x = -2, y = 12

Just write the number for your answer

Directions for #21-22: Identify the direct variation equation from the graph.

21

1

(Follow the directions above)

22

1

(Follow the directions above)

Directions for #23-30: Select all the transformations that are happening to the function.

23

1

f(x) = x; g(x) = -x+2

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

24

1

f(x) = x; g(x) = 1/3x

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

25

1

f(x) = x; g(x) = -1/5x - 6

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

26

1

f(x) = x; g(x) = 4x + 5

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

27

1

f(x) = x; g(x) = -10x

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

28

1

f(x) = x; g(x) = 5/7x - 3

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

29

1

f(x) = x; g(x) = 2x +4

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

30

1

f(x) = x; g(x) = -3/2x + 1

***Be careful! Think about 3/2....

Vertical translation up

Vertical translation down

Reflect over the x-axis

Dilation, Vertical compression

Dilation, Vertical stretch

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