QuestionFind the average rate of change for the quadratic function from $x=7$ to $x=8$ given the vertex at $(0,3)$.

Studdy Solution
Calculate the average rate of change from $x=$ to $x=8$.
$$\text{Average rate of change from } x= \text{ to } x=8 = -13 -2 = -15$$The average rate of change for the interval from $x=$ to $x=8$ is -15, so the answer is D. -15.