Graph the first four terms of the arithmetic sequence-4,-3,-2,-1...then choose the statements that are truer

Which statements are true? see picture

State one method by which you can recognize a perfect square trinomial.

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?