Question

A soccer team will sell T-shirts for a fundraiser. The company that makes the T-shirts charges $10 per shirt plus a $20 shipping fee per order.
a. Write and graph an equation in two variables that represents the total cost of ordering the shirts.
b. Choose an ordered pair that lies on your graph in part (a). Interpret it in the context of the problem.
(im the worst in math)

Answer 1

a. Write and graph an equation in two variables that represents the total cost of ordering the shirts.
 For this case, the first thing we must do is define variables:
 c = total cost
 x = x number of shirts.
 The equation that adapts to the problem is:
 c (x) = 10x + 20
 Answer:
 c (x) = 10x + 20

 b. Choose an ordered pair that lies on your graph in part (a). Interpret it in the context of the problem.
 Let's choose the next ordered pair:
 (x, c (x)) = (0, 20)
 We verify that it is in the graph:
 c (20) = 10 (0) + 20
 c (20) = 20 (yes, it belongs to the graph).
 In the context of the problem, this point means that the cost per shipment is $ 20
 Answer:
 (0, 20)
 Cost per shipment is $ 20