Question

The function {(0, -2), (1, 0), (-1, -4)} has the function rule y = 2x - 2.

True
False

Answer 1

Plug in x = 0

What do you get?

Answer 2

i think -2 but i dont kno how to set up the problem

Answer 3

You plug in each x value to get a corresponding y value

Answer 4

that determines which points lie on y = 2x - 2

Answer 5

so because x = 0 yields y = -2, this means the point (0, -2) lies on the graph of y = 2x - 2

Answer 6

you must check the other x values to see if the other points lie on the line or not

Answer 7

ok