what is an equation for a direct variation that includes the point (10,-90)?

Question

Help! I need the answer

Answer 1

Here given point is (10,-90)

X is half of the coordinate pair and y is half of the coordinate pair.

here x represents 10 and y represents -90.

Direct variation equation is y = mx

m = y/x

m = -90/10

m = -9

Direct variation equation that includes the point (10,-90) is y = -9x.