The amount of photosynthesis that takes place in a certain plant depends on the intensity of light x according to the equation f(x ) = 145x2 - 25x3. (a) Find the rate of change of photosynthesis with respect to the intensity of light. f' ( x ) = X (b) What is the rate of change when x = 1? When x = 3? when x = 1 when x = 3 (c) How fast is the rate found in part (a) changing when x = 1? When x = 3? when x = 1 when x = 3 Need Help? Read It