1.

\fFind the average rate of change of f(x) = 3x from X1= 2 to x2 = 5. OA 1 21 OB 1 21 OC -21 O D 21Find the average rate of change from 1 to 2 and then from 2 to 4 of f( x) = 2x3 + X. O 15; 3 A O 3; 15 B O 15; 57 O 57; 15\fThe function f is one-to-one. Find its inverse. 6 f (X) = - x - 2 OA f - 1 ( x ) = - 6 + 2 X OB f- 1 (x ) = - 6 X 2 OC f-1 (x ) = + 2 X OD f (X) = - X + 2Determine whether the graph is that of a function. If it is, use the graph to find its domain and range, the intercepts, if any, and any symmetry with respect to the x-axis, the y-axis, or the origin. OA not a function O B mction domain: {x|x s 9} range: all real numbers intercepts: (-4, Cl), (Cl, 8). (2: 0) symmetry. y-axis (Q C function domain: all real numbers range: {y 5 9} intercepts: (-4, 0), (0, 8), (2, 0) symmetry. none 0 D function domain; all real numbers range: HI? 5 9} intuccpts: (0= 4), (8= 0)= (D, 2) symmetry. none Let f(x) = -3x - 6 and g(x) = 5x + 2. Find f(x) + g(x). O -8x - 8 A O 2x - 4 B O 2x - 8 O -8x - 4