Let f x x 7x on 4 9 Use the IVT to determine if there is a solution to f x 10 in the interval between 4 and 9 If so find the value of c in the interval such that f c 10 O O f x is continuous on 4 9 10 is between f 4 12 and f 9 18 c 2 c 5 f x is continuous on 4 9 10 is between f 4 12 and f 9 18 c 5 f x is continuous on 4 9 10 is between f 4 12 and f 9 18 c 2 f x is continuous on 4 9 10 is not between 4 and 9 so the IVT does not apply