I can tell this activity is about graphing, but the writing is barely legible, can you re-upload the pictures or write it out?
I believe the answer is 9.
Answer:

Step-by-step explanation:
The rate of change is the slope. The rate of change is the greatest for the slope with the greatest absolute value. In the graph, this is shown with the steepest inclination. That occurs from x = 4 to x = 6.
Answer:

The numerator is 16 and the denominator is 3.
Answer:
Constant = αβ=−5
Step-by-step explanation:
ab is5x