Need help with this multiple choice homework set thank you.

posted the same example. (9) Let f(x) = 23. The average rate of change of f on the interval [-2, 2] is (A ) 16 (B) 3x2 (C) 0 (D) 4 (10) The tangent line to y = f(x) at (3, 5) has slope (A) 3 (B) 5 (C) (5)-f(3) 5 - 3 (D) limb-+3 f(6)-f(3) 6 - 3 (11) The tangent line to y = x + 2 at (3, 5) has slope ( A) 1 (B) 2 (C) 3 (D) 5. (12) The tangent line to y = -(x - 1)2 at (1,0) has slope (A) -1 ( BO (C) 1 (D) 2