Answer:
c = 1
Step-by-step explanation:
The formula for the MVT is
[tex]f'(c)=\frac{f(b)-f(a)}{b-a}[/tex]
where f'(c) is the derivative of the function: 8x - 3;
f(b) is the function evaluated at an x value of 2 (the second number in the interval): f(b) = 12;
f(a) is the function evaluated at an x value of 1 (the first number in the interval: f(a) = 2
Setting up:
[tex]8c-3=\frac{12-2}{2-0}=\frac{10}{2}=5[/tex]
So basically what we end up with is
8c - 3 = 5 and
8c = 8 so
c = 1
This function does in fact satisfy the requirements for the MVT: it is continuous on the interval and it is differentiable on the interval as polynomials by nature are continuous and differentiable on all values of x.