Question

Write an equation representing the direct variation.

х
-2
3
4.
7
y
5
-7.5
-10
-17.5
1) k =
2)

Answer 1

y = -2.5x

Explanation:

The constant of variation = y/ x = 5/-2 = -2.5

Also -7.5 / 3 = -2.5

-10 /4 = -2.5 and so on