Answer:
6
Step-by-step explanation:
Use the slope formula:
[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]
Picking x = 2 and x = 4 as my two points (since the interval is 2 ≤ x ≤ 4), we get:
[tex]m = \frac{15-3}{4-2} = \frac{12}{2} = 6[/tex]
So, the BEST estimate of the average rate of change for the function given in the table is 6.
