reyamukhtar reyamukhtar 13-04-2019 Mathematics contestada How does f(x) = 9^x change over the interval from x = 4 to x = 5? A) f(x) increases by 9 B) f(x) decreases by 9 C) f(x) increases by a factor of 9 D) f(x) decreases by a factor of 9