Given the depth vs. clock time function y = f(t) = .018 t² + -2.19 t + 96, with depth in cm when clock time is in seconds, find the clock time t such that f(t) = 34.3875 cm and find f(t) when t = 28 cm. Find the clock time when water depth is 51.3875 cm. Using the same function determine the depth at clock time t = 12 sec.