Please note that there are 2 problems (#3 and #4) that need to be completed. Feel free to let me know if additional information is needed from me. Thank you very much!

PROBLEM 3 For each of the functions below, determine the difference quotient and simplify when possible. Each problem is worth 1 points; partial credit is given. All work must be shown and answers must be simplified to receive full credit. a) f(x)=x+3 b) g(x)=x2+2x 0) mpg PROBLEM 4 Show that the difference quotient represents the slope of the line that passes through two points on y = f (x), namely the slope between (9:, f (x)) and ((x + h), f(x + h)). [Hintz begin with the definition of slope of a line.] This problem is worth 1.5 points; partial credit is given