Q:

What is the average rate of change for this quadratic function for the interval from x=1 to x=3?

Accepted Solution

A:
Answer:The average rate of change is [tex]-4[/tex]Step-by-step explanation:we know that the average rate of change using the graph is equal to [tex]\frac{f(b)-f(a)}{b-a}[/tex] In this problem we have [tex]f(a)=f(1)=0[/tex]  [tex]f(b)=f(3)=-8[/tex] [tex]a=1[/tex] [tex]b=3[/tex] Substitute [tex]\frac{-8-0}{3-1}=-4[/tex]