You seem to be upside down. Please examine the formulation more carefully and give it another go.
Let's see what you get.
1. If and , then at is?
However, the correct answer is -2
2. If , how many numbers in the interval [-2,3] satisfy the conclusion of the Mean Value Theorem?
f is always negative on the interval so I got rid of the absolute value signs and multiplied it by -1.
Then I differentiated and got:
x=.321, -2.141, 1.820
interval is [-2,3] so c=.321, 1.820
The thing is the answer is three numbers...
Any help is greatly appreciated