Answer:
8
Step-by-step explanation:
In function one, the formula for the function is y=4. However the y value never changes, so the rate of change of this function is 0.
Examining the function [tex]y=8x+12[/tex], we can determine that the Y-intercept is 12 and the function changes by 8 in y for every value of x.
Therefore the rate of change in this function is 8.
8 - 0 = 8, so the rate of change in function 2 is 8 greater than the rate of change in function 1.
Hope this helped!
