Let f(x) = v11x - 28, complete the following by hand, then check your answers using a calculator: a. Evaluate f(6) (Round your answer to the nearest thousandth). Preview b. Determine a if f(x) = 12.166. Preview c. Determine the values of x such that f(@) = c. Start by graphing f and the equation y = a in the same coordinate plane. Then, check your answers by plugging the values back into the function. Enter you answers in a comma-separated list, and round your answers to the nearest hundreth: C = Preview