The equation and the table show the cost, y, for different sports programs as functions of the number
of classes, a.
Complete the statements.
When the number of classes is ?
gymnastics is less expensive.
1
When the number of classes is
ice skating is less expensive.
1 or 2
3 or 4
4
4
Gymnastics Program:
Number of Classes Total Cost ($)
1
2
3
7
25
50
75
100
Ice-Skating Program: y = 18z + 20
Number of Classes Total Cost ($)
1
20
2
38
3
56
4
74