Since we have 2 x values given:
You would need to look into the graph.
As x = 0, y = -1
As x = 2, y = 5
We have 2 coordinate points now YAY!
(0, -1) and (2, 5)
we next find the slope..... using the slope formula if you recall (Hint: [tex]m= \frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex])
[tex]\frac{5-(-1)}{2-0} = \frac{5+1}{2} =\frac{6}{2} = 3[/tex]
3 is your average rate of change from x = 0 to x = 2
