4.2 Maximum and Minimums Score: 0/20 0/20 answered Question 2 The function -5x - 7 f(x) = 4x + 10 has a single critical number at a = A. Find this critical number. A = The function is Select an answer v | on the interval ( - co, A). Select an answer v on the interval (A, co). At the critical number a = A the function Select an answer Select an answer Submit Question has a saddle point has a local maximum has a local minimum does not exist 7:03 AM 11/17/2022 E 9