here is the questions . please make clear solution and clear font . thanks

1. (3 points) Calculate the limits if they exist: a) lim 2x- -9x+4 x-4 x-+x-20 b) lim xlx-21 lim : xlx-21 lim xlx-21 x-5 x-2 x-0 x-2 x-2 x-2 c) lim 4x3 -3x2+8 lim 2x3-9x+4 2x- -9x+4 x-0 2x-+2x-1 lim x-0 x-tx-20 x40 x3+x-20 2. (1.5 points) Given: f ( x ) =- 3x2 -48 x' -7x+12 a. Find the domain. b. Find intercepts. c. Write the equations of horizontal and vertical asymptotes. 3. (0.5 points) Let function f(x) be defined as f(x) = 4x2 - 2a, if x