Show all your work please

Answer all questions and show your work. 1. Find the average rate of change of at) = 9:2 1 on [1,3] 2. Sketch the graph of the function. (a) f(x) = x+3+ 2 ('3) x) = 2(11': - 1)2 - 1 (c) f(:r) = |:r+ll+3 3. Find the inverse function of f (m) = 2x 3 m + 1 and verify f and its inverse are inverse functions of each other. 4. Sketch the graph of at) = 2:122 +8x+ 1. Find the vertex and the axis of the symmetry (parabola)