I need help with this, I got a little lost after (c) increase and decrease

Consider the function f (x) = = x-1 (a) Find the domain of f (a). Note: Use the letter U for union. To enter co, type infinity. Domain: (-infinity, -1) U (-1, infinity) (b) Give the horizontal and vertical asymptotes of f (), if any. Enter the equations for the asymptotes. If there is no horizontal or vertical asymptote, enter NA in the associated response area. horizontal -1 asymptote: vertical asymptote: (c) Give the intervals of increase and decrease of f (x). Note: Use the letter U for union. To enter oo, type infinity. If the function is never increasing or decreasing, enter NA in the associated response area.increasing: (-infinity, -1) decreasing: (-1, infinity) (d) Give the local maximum and minimum values of f (a). Enter your answers in increasing order of the x-value. If there are less than two local extrema, enter NA in the remaining response areas and the corresponding drop-down menu. Include a multiplication sign between symbols. For example, a . IT. f( NA P )= NA NA f( NA )= NA NA (e) Give the intervals of concavity of f (x). Note: Use the letter U for union. To enter oo, type infinity. If the function is never concave upward or concave downward, enter NA in the associated response area.concave upward: @ D concave downward: @D {I} Give the inflection points of f [3:] Enter your answers in increasing order of the mcoordinate. If there are less than two points of inflection1 enter NA in the remaining response areas. Include a multiplication sign between symbols. For example, a - 7r. (g) Select the graph of f (a). iii O -10 -5 I 5- O -10 -5. 0 10O -10 -5. 0 10 15- 10 5- O -10 -5 10 -5