Please help I have no clue how to please explains how you got the answers thank you.

8. Consider f (x) = 2x - land g(x) = -2x + 7. a. [5] Complete the table below. X -2 0 1 2 f (x) g(x) (f + g) (x) (f x g) (x) b. [4] Graph both composite functions in the grid provided, (plot the ordered pairs, and estimate the composite functions graphs. c. [2] Simplify the equation of (f + g)(x). d. [2] Simplify the equation of (fx g)(x). 9. [4]Given f (x) = {(1,2), (2,3), (3,4)} and g(x) = {(1, -5), (2,0), (3,5), (4,2)} state each composite function as a set of ordered pairs. a. fg b. f(x) g (x) c. f(x) + g(x) d. f(x) - g(x)