What is the average rate of change of the function over the interval x = 0 to x = 5? f(x)=42x+1

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area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

8 2/3 is the answer

step-by-step explanation: just use a calculator

what is the original number? you forgot to add it.