Please help i will give brainlist

  7.5

Step-by-step explanation:

For function f(x), the average rate of change between x=a and x=b is given by ...

  average rate of change = (f(b) -f(a))/(b -a)

For your function, this will be ...

  average rate of change = ((2^5 +3) -(2^1 +3))/(5 -1) = (35 -5)/4

  average rate of change = 7.5

(-1,0) and (4,0) are x-intercepts.

step-by-step explanation:

x-intercepts are all points on the x-axis.

points (-1,0) and (4,0) are both x -intercepts.