Let f be a function defined as follows: " - 2x + sin(x) ifx 4, 2 EC For the answers requiring a numerical answer, enter the exact answer. (That means don't round it.) Q7.1 1 Point For what value of c is f left-continuous at x = 4? Enter your answer here Q7.2 1 Point For what value of c is f right-continuous at a = 4? Enter your answer here Q7.3 1 Point What type of discontinuity does f have at x = 4? O A removable discontinuity O A jump discontinuity O An infinite discontinuity O No discontinuity. (The function is continuous at a = 4.)