cycle and can be calculated using the formula T = 2, where is the length of the pendulum and 9.8' The period T of a pendulum is the time for one 9.8 is the gravitational acceleration due to gravity in meters per second squared. Is this formula a function of ? If so, determine the domain. If not, explain why not. (Example 5) 48. f(x)= 50. f(x)= Find f(-5) and f(12) for each piecewise function. -4x+3 if x 8 -5x if x 12 2x + 6x + 4 if x < -4 6x if -4 < x < 12 14 if x 12 -15 if x 10