QUIZ. Linear, Quadratic, and exponential functions This table shows values that represent a quadratic function.

What is the average rate of change for this quadratic function for the interval
from x= 4 to x= 6?
A. -20
B. 20
C. 10
D. -10

To find the  unit rate, divide the numerator and denominator of the given  rate  by the denominator of the given  rate. so in this case, divide the numerator and denominator of 70/5 by 5, to get 14/1, or 14 students per class, which is the  unit rate.