Help me on this problem plzz

What is the slope of the line that contains the points (-2,1) and (0,-3)

In which direction does the left side of the graph of this function point? a(x) = 3x - x2 + 4x - 2

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?