I don't understand anything

Name: Unit 2: Functions & Their Graphs Date: Per: Homework 5: Average Rate of Change * This is a 2-page document! * Directions: Given the function below, find the average rate of change on each interval. 1. [-5. -2] 2. [-3, 0] 3. [-9. 7] 4. [-2. 0] Directions: Find the average rate of change of each function on the given interval. Round your answer to the nearest hundredth if necessary. 5. f(x) = x +7x -11; [-8,-5] 6. f (x) = 17-x; [-9, 6] * ; [-1,5] 8. f (x) = --x -1x2 + 3x +1; [8,14]