Q:

Let f(x) = (x − 3)−2. Find all values of c in (1, 7) such that f(7) − f(1) = f '(c)(7 − 1). (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) c = Based off of this information, what conclusions can be made about the Mean Value Theorem? This contradicts the Mean Value Theorem since f satisfies the hypotheses on the given interval but there does not exist any c on (1, 7) such that f '(c) = f(7) − f(1) 7 − 1 . This does not contradict the Mean Value Theorem since f is not continuous at x = 3. This does not contradict the Mean Value Theorem since f is continuous on (1, 7), and there exists a c on (1, 7) such that f '(c) = f(7) − f(1) 7 − 1 . This contradicts the Mean Value Theorem since there exists a c on (1, 7) such that f '(c) = f(7) − f(1) 7 − 1 , but f is not continuous at x = 3. Nothing can be concluded.

Accepted Solution

A:
Answer:This contradicts the Mean Value Theorem since there exists a c on (1, 7) such that f '(c) = f(7) − f(1) (7 − 1) , but f is not continuous at x = 3Step-by-step explanation:The given function is [tex]f(x)=(x-3)^{-2}[/tex]When we differentiate this function with respect to x, we get;[tex]f'(x)=-\frac{2}{(x-3)^3}[/tex]We want to find all values of c in (1,7) such that f(7) − f(1) = f '(c)(7 − 1)This implies that;[tex]0.06-0.25=-\frac{2}{(c-3)^3} (6)[/tex][tex]-0.19=-\frac{12}{(c-3)^3} [/tex][tex](c-3)^3=\frac{-12}{-0.19}[/tex][tex](c-3)^3=63.15789[/tex][tex]c-3=\sqrt[3]{63.15789}[/tex][tex]c=3+\sqrt[3]{63.15789}[/tex][tex]c=6.98[/tex]If this function satisfies the Mean Value Theorem, then f must be continuous on  [1,7] and differentiable on (1,7).But f is not continuous at x=3, hence this hypothesis of the Mean Value Theorem is contradicted.