Let and r(x) = x. Use a graphing calculator to draw graphs of all three functions in the...

Let and r(x) = x. Use a graphing calculator to draw graphs of all three functions in the same viewing window for 1 ≤ x ≤ 16. Discuss what it means for one function to be smaller than another on an interval, and then order the three functions from smallest to largest for 1 < x ≤ 16.