WRITE A DIRECT VARIATION THAT RELATES X AND Y WORKSHEET

The variables x and y vary directly. Use the values to write an equation that relates x and y.

Problem 1 :

y = 4; x = 2

Solution

Problem 2 :

y = 25; x = 5

Solution

Problem 3 :

y = 60; x = 15

Solution

Problem 4 :

Write a direct variation equation that relates x inches to y centimeters.

Solution

Problem 5 :

The weight of an object in our solar system varies directly with the weight of the object on Earth.

Solution

Problem 6 :

Tell whether x and y show direct variation. If so, write an equation of direct variation.

Solution

Problem 7 :

The amount of chlorine in a swimming pool varies directly with the volume of water. The pool has 2.5 milligrams of chlorine per liter of water. How much chlorine is in the pool?

Solution

Answer Key

1)  y = 2x

2)  y = 5x

3)  y = 4x

4)  y = 2.54 x

5)  

6)  Constant of variation is not equal, then it is not direct variation.

7)  C = 20 milligrams.