Q. Given the function f(x)=x2−10x+18, determine the average rate of change of the function over the interval −1≤x≤6.Answer:
Given Function and Interval: We are given the function f(x)=x2−10x+18 and asked to find the average rate of change over the interval [−1,6]. The average rate of change is given by the formula:Average rate of change = (f(b)−f(a))/(b−a)where a and b are the endpoints of the interval. In this case, a=−1 and b=6.
Find f(a): First, we need to find the value of f(a) where a=−1.f(−1)=(−1)2−10(−1)+18f(−1)=1+10+18f(−1)=29
Find f(b): Next, we need to find the value of f(b) where b=6.f(6)=(6)2−10(6)+18f(6)=36−60+18f(6)=−6
Calculate Average Rate of Change: Now we can calculate the average rate of change using the values of f(a) and f(b) we found.Average rate of change = (f(b)−f(a))/(b−a)Average rate of change = (−6−29)/(6−(−1))Average rate of change = (−35)/(7)Average rate of change = −5