Question

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

Answer 1

It is simple, please substitute the coordinates of your second point in the relationship y=kx,, and then get the value of k

Answer 2

So -2=k1? Then I find k?

Answer 3

that's right!

Answer 4

K=-2, so the answer is y=-2x then?

Answer 5

y=-2x? @Michele_Laino

Answer 6

Ok!

Answer 7

Okay thank you! :)

Answer 8

Thank you!