Hello,

Could you please help me clarify with the following homework questions and provide it step by step .

Thank you very much

2. A photographer uses a light meter to measure the intensity of light from a flash bulb. The intensity for the flash bulb, I, measured in lux, is a function of the distance from the light, d, ,measured in metres, and can be represented by Id) = -2.d> 0 a) Determine the following, to two decimal places. i) the average rate of change in the intensity of light for the interval [2, 4] vv ii) the approximate instantaneous rate of change in the intensity of light at exactly 5 m from the flash bulb. b) What does the sign of your answer to part a), subpart ii), indicate about the light intensity