Find the average value f ave of f(x)=x7  between -1 and 1, then find a number c in [-1,1] where f(c)=f ave

Consider the function f(x) = 10/x + 2 on the interval 4, 5]. Find the average or mean slope of the function on this interval. By the Mean Value Theorem, we know there exists a c in the open interval (4, 5) such that f'(c) is equal to this mean slope. For this problem, there is only one c that works. Find it.

Determine the interval(s) on which f(x)=square root(x/x-4) is continuous.