Plsss ; ) which formula below gives the average rate of change of the function z(x) = -6x + 2 + 3 on the interval -1 ≤ x ≤ 2 ?

ave rate of change = (-6)^(2+2) +3 -  (-6)^(-1+2) +3

                                      2+1

Step-by-step explanation:

To find the average rate of change

ave rate of change = f(x2) - f(x1)

                                   x2-x1

We know that x2 = 2 and x1 = -1

ave rate of change = f(2) - f(-1)

                                   2--1

ave rate of change = (-6)^(2+2) +3 -  (-6)^(-1+2) +3

                                      2+1

147,000

Step-by-step explanation: you multiply 21,000 and 7