here is the question . please make a clear font and clear solution

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.1. (4 points) Write the equation of the straight line through the two given points: M1 .-2} and B{-2.-}. Find intercepts and slope of the line. Sketch the graph. 2. {5 points} At a price $1.90. the annual supply and demand for barley are 41D million bushels and 455 million bushels respectively. When the price rises to $230 per bushel. the supply increases to 430 million bushels and demand decreases to 415 million bushels. Find the equilibrium point for barley market. 3. to points} The marketing research department for the company that manufactures and sells memory chips for computers established the following price demand function: Pix} = T5 3X. where p{x} is the wholesale price in dollars at which x million chips can be sold. {A} Find the domain of revenue function. (E) Sketch a graph of the revenue function in a rectangular coordinate system. [C] Find the output that will produce the maximum revenue. Find the maximum revenue. {D} What Is the wholesale price per chip that produces the maximum revenue