Direct and inverse variation Quiz

Name: ______________________   Date: __________   Score: ____ / 10

10 questions. Calculator allowed. Show your working. steplyclass.com/algebra-1/direct-and-inverse-variation/quiz/

1. 1

   y varies directly with x. y = 12 when x = 4. Find y when x = 7.
   1. A) y = 3
   2. B) y = 21
   3. C) y = 12
   4. D) y = 73

2. 2

   y varies directly with x. y = 20 when x = 5. Write the equation. Find y.

   Answer: ____________________

3. 3

   y varies inversely with x. y = 10 when x = 2. Find y when x = 5.
   1. A) y = 20
   2. B) y = 25
   3. C) y = 4
   4. D) y = 10

4. 4

   d varies directly with t. d = 120 when t = 2. Find d when t = 5.

   Answer: ____________________

5. 5

   y is directly proportional to x. y = 36 when x = 9. Find y when x = 2.
   1. A) y = 36
   2. B) y = 12
   3. C) y = 8
   4. D) y = 4

6. 6

   Y is inversely proportional to x. y = 5 when x = 12. Find y when x = 10.

   Answer: ____________________

7. 7

   p varies inversely with v. p = 30 when v = 4. Find p when v = 8.
   1. A) p = 15
   2. B) p = 120
   3. C) p = 30
   4. D) p = 60

8. 8

   y varies directly with x. y = 21 when x = 7. Find y when x = 10.

   Answer: ____________________

9. 9

   Y varies directly with the square of x. y = 12 when x = 2. Find y when x = 5.
   1. A) y = 4
   2. B) y = 253
   3. C) y = 12
   4. D) y = 75

10. 10

    Y varies inversely with the square of x. y = 2 when x = 4. Find y when x = 8.

    Answer: ____________________