answer and explain

Limits 50. Let f(x) = - L.x - 3) . Find 1 - x ifx so (A) lim f(x) (B) lim_f(x) 43. Let f(x) = 1 2 if x > o' Find (C) lim f(x) (D) 0' . Find (C) lim f(x) (A) lim f(x) (B) lim f(x) 52. Let f(x) = x+ 3 -. Find (C) lim f(x) (D) (0) x2 + 3x (A) lim f(x) (B) lim f(x) 45. Let f(x) = x ifx 1' . Find (C) lim f(x) (A) lim f(x) (B) lim_f(x) 53. Let f(x) = x2 - x - 6 Find x+2 (C) lim f(x) (D) (1) -1 (A) lim f(x) (B) lim f(x) *-+0' x+ 3 if x -2 Find x-+3 x + x - 6 (A) lim f(x) (B) lim f(x) 54. Let f(x) = = . Find x+ 3 (C) lim f(x) (D) f (-2) (A) lim f(x) (B) lim f(x) x2 - 9 (C) lim f(x) * + 3 if x 0 (A) lim f(x) (B) lim f(x) *-+0 (A) lim f(x) (B) lim f(x) (C) lim f(x) x-+2 (C) lim f(x) x-+3 56. Let f(x) = x2 - (x + 1)2 12. Find * + 3 if x 0 x-1 (A) lim f(x) (B) lim f(x) $7. Let f(x) = 2x - 3x - 2 Find x' + x - 6 (C) lim f(x) (A) lim f(x) (B) lim f(x) (C) lim f(x) 49. Let f(x) = * - 1 Find 58. Let f(x) - 3x + 2x - 1 . Find (A) lim f(x) (B) lim_f(x) x2 + 3x + 2 (C) lim f(x) (D) (1) (A) lim f(x) (B) lim f(x) x-+1 (C) lim f(x) x-+2Problems 7-14 refer to the function fshown in the figure. Use the graph to estimate the indicated function values and limits. Figure for 7-14 7. 10.9) 8. 0.1) 9. f(-1.9) 10. f(-0.9) 11. (A) lim_f(x) (B) lim f(x) (C) lim f(x) (D) (1) (E) Is fcontinuous at x = 1? Explain. 12. (A) lim f(x) (B) lim, f(x) (C) lim f(x) (D) 2) (E) Is fcontinuous at x = 2? Explain. 13. (A) lim f(x) (B) lim f(x) (C) lim f(x) (D) f(-2) (E) Is fcontinuous at x = -2? Explain. 14. (A) lim f(x) (B) lim f(x) (C) lim f(x) (D) f(-1) (E) Is fcontinuous at x = -1? Explain. 15. g(-3.1) 16. 8(-2.1) 17. g(1.9) 18. g(-1.9) Problems 15-22 refer to the function g shown in the figure. Use 19. (A) lim_g(x) (B) lim g(x) the graph to estimate the indicated function values and limits. (C) lim g(x) (D) 8(-3) (E) is g continuous at x = -3? Explain. 8(x) 20. (A) lim_g(x) (B) lim g(x) (C) lim g(x) (D) 8(-2) (E) Is g continuous at x = -2? Explain. 21. (A) lim g(x) (B) lim g(x) (C) lim g(x) (D) 8(2) (E) Is g continuous at x = 2? Explain. 22. (A) lim g(x) (B) lim g(x) (C) lim g(x) (D) 8(4) Figure for 15-22 (E) Is g continuous at x = 4? Explain