Question

Determine whether y varies directly with x. If so, find the constant of variation and write the equation.

Answer 1

Direct variation is of the form y=kx, so y/x should be a constant, k...

-8/-2=-16/-4=-24/-6=k=4 so y=kx is:

y=4x

Answer 2

Answer:

K = 4 and y = 4x

Step-by-step explanation:

we have to find the constant of variation for the table in which y varies directly with x

y ∝ x

y = Kx

Where K is constant of variation.

K = $\frac{y}{x}$

1.  For x = -2 and y = -8

                           K = $\frac{-8}{-2}$ = 4

2.  For x = -4 and y = -16

             K = $\frac{-16}{-4}$ = 4

3.  For x = -6 and y = -24

             K = $\frac{-24}{-6}$ = 4

Therefore, K = 4 and y = 4x will be the equation.