Obje For Exercises 39-40, determine whether the intermediate value theorem guarantees that the function has a zero on the given interval. (See Example 5) - 39. f(x)=2x-7x14x + 30 a. [1, 2] c. [3,4] b. [2, 3] d. [4,5] 40. g(x) = 2x- 13x + 18x+5 a. [1,2] b. [2, 3] c. [3,4] d. [4,5]