1. The points plotted on the coordinate plane below are three vertices of a rectangle.
37
2.5-
2
1.5
1
0.5
01
-3 -2.5 -2 -1.5 -1 -0,5.0
0.5
1
1.5
2
2.5
3
-2.5
What are the coordinates of the fourth vertex of the rectangle?

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?