You and some friends go to the movies. You and four other friends pay a total of $47.50 for tickets alone. You notice that a family member and her friends also came to the movies. Their group of 3 paid a total of $28.50. From this information determine the cost per ticket at the movie theater.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

df =

both have same length

16 would be your answer