The percent of surface light that filters down through bodies of water can be modeled by the exponential function Lox) 100, where k is a measure of the murkiness of the water and is the depth (in meters) below the surface. a. A recreational submersible is traveling in clear water with a 4-value of about -0.02 Write a function that gives the percent of surface light that filters down through clear

water as a function of depth.

h. Tell whether your function in part (a) represents exponential growth or exponential
decay. Explain your reasoning

c. Estimate the percent of surface light available at a depth of 40 meters .