Question

Find the direct variation equation of the graph through the points (0, 0) and (1, -2). Write in y=kx form.
y = 2x
y = -2x
y = 1/2 x
y = -1/2 x

Answer 1

How do i figure this out???? please help me!

Answer 2

this graph pass from (0,0) so if it didnt give you the hint : y = kx you would know that it is in that form.
it passes from ( 1, -2 ) so ... (-2) = k (1) --> k = -2
so the equation is y = -2 x

Answer 3

thanks!

Answer 4

:)