Question

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

Answer 1

When x = 1, y = -2 when dealing with the point (1, -2)


So y = kx becomes -2 = k(1)


Solve for k to get: k = -2


So the equation is y = -2x

Answer 2

Notice how when x = 0, y = -2(0) = 0


So we have x = 0 and y = 0, giving us the point (0, 0)

Answer 3

Thanks(:

Answer 4

yw