Question

Answer fast plzzzzz!!!!

Answer 1

(2)

The f(x) doubles by every one that x goes up.

Answer 2

It's the 3rd graph that represents a linear rel. Notice that each time x increases by 1, f(x) increases by 2. Thus, the slope is 2 and the equation of the line in the 3rd graph is y = 2x - 1.