Hi I need help with questions 17, 18, and 19 please.

2:26 a webassign.net x2 - 4x X = 0,4 Need Help? Watch It 16. [1/1 Points] DETAILS PREVIOUS ANSWERS TANAPMATH7 9.2.066.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The function P, whose graph follows, gives the prime rate (the interest rate banks charge their best corporate customers) for a certain country as a function of time for the first 32 weeks in 2015. P (percent per year) t (weeks) 4 8 12 16 20 24 28 32 Determine the values of t for which P is discontinuous. (Enter your answers as a comma-separated list.) t = 12,24,28 Interpret your results. At t = 12, the prime interest rate | jumped from 3-% to 4 %, at t = 24 it jumped to 4.5 % and at t = 28 it jumped back down to 4 % . 17. [-/1 Points] DETAILS TANAPMATH7 9.2.073.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER For what value of k will the function f be continuous on (-oo, co)? x+ 5 ifxs 1 ((x ) = kx 2 if x > 1 K = 18. [-/1 Points] DETAILS TANAPMATH7 9.2.080.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use the intermediate value theorem to find the value of c such that f(c) = M. f(x) = x2 - x + 1 on [2, 10]; M = 7 C = Need Help? Watch It 19. [0/1 Points] DETAILS PREVIOUS ANSWERS TANAPMATH7 9.2.081.NVA MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Use the method of bisection (see Example 6) to find the root of the equation x5 + 3x - 7 = 0 accurate to two decimal places. X = 1.3 X Need Help? Watch It + 4