3) Student council is selling tickets for the school play. Student tickets cost $3 each and adult tickets cost $5 each. On the first day of ticket sales they sold 19 tickets and made a total of
$71. How many of each type of ticket did they sell?

you need a common difference between consecutive terms to be constant, like 1,2,3,4 or 2,4,6,8, or 1,3,6,9

step-by-step explanation:

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: