Problem 107. Suppose that a differentiable function y = f(x) has the property that f(2)=-4 and f(4) = -2. Explain why there must exist some input value in the input interval 2 ≤ x ≤ 4 where f'(x) = 1. Can you determine the value of x? |

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A: Step 1:Step 2: Step 3: Step 4: