What is the average rate of change of the function over the interval x = 0 to x = 8? f(x)=3x+4 2x+7 enter your answer, as a fraction, in the box.

For a nonlinear graph whose slope changes at each point, the average rate of change between any two points is defined as the slope of the line through the two points. We call the line through the two points the secant line and its slope is denoted as , so:

Then:

b) the dogs need to shift their focus to human scent.

the answer will be