Need help with problems 12-22. Answers only is fine if you want. I'll give helpful rating.

12 Select the correct answer. What is the graph of _ ify= -x + x- 1. DA TJ Graph A 5 -4 -3 -2 -1 1 2 3 4 5 O B. Graph B 5 -4 3 -1 2 3 4 5 DC Graph C 5 -4 -3 -2 -1 2 3 4 5 1 D D. Graph D 5 4 .3 -2 -1 1 2 3 4 513 Select the correct answer. Why is this function discontinuous at x = 0? fix) = -2+8 V/x2 O A. It has a cusp at x = 0. O B. It has a jump discontinuity at x = 0. O C. It has a vertical asymptote at x = 0. O D. It has a vertical tangent line at x = 0.14 Select the correct answer. Which statement about this function is true? ax) = |(X- 4)2| 0 A. fix) is continuous and differentiable in its domain. 0 B. fix) is discontinuous and differentiable in its domain. 0 C. fix) is continuous and non-differentiable in its domain. 0 D. fix) is discontinuous and non-differentiable in its domain. 15 Select the correct answer. Identify the points at which f(x) is not differentiable. cil 14 13 12 11 |10 211-10 -9 -8 -7 -6 -5 -4-3-2-1 1 2 3 4 5 6 7 8 9 10 11 1 O A. f(x) is not differentiable at x = 3. O B. A(x) is not differentiable at x = -3. O C. f(x) is differentiable along ( - 00 , 00 ) O D. f(x) is not differentiable at x = +3 and x = -3.16 Select the correct answer. Identify the points at which f(x) is not differentiable. 1= 1 if x