Answer:
The rate of change is 4
Step-by-step explanation:
The rate of change can be calculated using the formula;
f(b)-f(a)/b-a
According to this question, a = -1 and b = 1
f(a) = f(-1) = 2(-1+1)^2 -3 = -3
f(b) = f(1) = 2(1+1)^2 - 3 = 8-3 = 5
So the rate of change is;
5-(-3)/1-(-1) = (5+ 3)/(1 + 1) = 8/2 = 4
