here is the question . please make the font black and clear to understand . thank you

4. (2 points) Let function f(x) be defined as f(x ) = Find the value of (if it is possible), that turns the function f(x) into the continuous one. Prove your answer. 5. (4 points) Given: Find A) The equation of the tangent line at x=1. B) The value(s) of x, where tangent line is horizontal. 6. (3 points) Find , if A) (x) = ; B) (x) =; C=. 7. (3 points) Find the derivative of function . Apply four-step process