For each equation, determine whether it represents a direct variation, an inverse variation, or neither. Find the constant of variation when one exists and write it in simplest form.

Question

QUESTION 1

-16 = 2xy

Is it a direct variation

Constant of variation: K =

Is it an inverse variation

Constant of variation: K =

Is it neither

QUESTION 2

5x = 2y+3

Is it a direct variation

Constant of variation: K =

Is it an inverse variation

Constant of variation: K =

Is it neither

Answer 1

-16 = 2xy

-8 = xy

y = -8/x

it's an inverse relation with constant of variation K =-8

5x=2y+3

neither direct or inverse

it would be direct with K= 5/2, if the 3 term wasn't there