Question

Write an equation for a direct variation with a graph that passes though each point.

(-1.5, 9)

What's the equation I would use for this?

Answer 1

The equation for all direct variation is y = kx, where k is what we call the constant of variation.

To find k, plug in the x and y points to that equation then solve for k... then rewrite the equation with the value that you find.

Answer 2

in
Y-y1=m(X-x1)
ser x1 and y1 from your point and by adjust every m you have a line that though of your point