Q. Given the function g(x)=x2−9x+12, determine the average rate of change of the function over the interval 1≤x≤7.Answer:
Define function g(x): We have the function g(x)=x2−9x+12. We need to find the average rate of change over the interval [1,7]. The average rate of change is calculated using the formula:Average rate of change = (g(b)−g(a))/(b−a)where a and b are the endpoints of the interval. In this case, a=1 and b=7.
Calculate g(1): Calculate the value of g(1) by substituting x=1 into the function g(x). g(1)=(1)2−9(1)+12 g(1)=1−9+12 g(1)=4
Calculate g(7): Calculate the value of g(7) by substituting x=7 into the function g(x). g(7)=(7)2−9(7)+12 g(7)=49−63+12 g(7)=−14+12 g(7)=−2
Calculate average rate of change: Now that we have g(1) and g(7), we can calculate the average rate of change using the values from Step 2 and Step 3.Average rate of change = (g(7)−g(1))/(7−1)Average rate of change = (−2−4)/(7−1)Average rate of change = (−6)/6Average rate of change = −1