At an amusement park, a person spends $30 on admission and food, and then goes on r number of rides that cost $2 each.
a. Write an equation to represent the total amount A spent
at the amusement park if a person goes on anywhere from 0 to
5 rides.
b. Represent the relation as a table, as a graph, and as a mapping
diagram.
c. Find the domain and range, and then determine whether the
relation is a function or not.