Question

Skylark joined a karate class. She paid $30 to join plus $25 per lesson. An equation to represent her cost is y = 25x + 30. If this equation were graphed, what would be the label on the x axis?
A. cost per lesson
B. number of lessons
C. original payment
D. cost of classes

Answer 1

The X axis is traditionally used to display the variable that causes the Y axis to change, as such the answer should B, the number of classes, since the cost of the lesson is static, and the overall cost of classes is what increases as more lessons are taken. Cost of Classes would go on the Y axis.

Answer 2

Sorry. I confused.

Answer 3

x would be number of lessons.