Eduardo teaches martial arts. He charges a one-time processing fee of $10.00 and the cost of each class is shown below. Let x represent the number of classes and y represent the cost of classes. Based on this information, what will it cost, in dollars, to take 8 classes?

Cost of classes (not including processing fee)

Number of Classes, x

1

2

3

4

Cost of Classes, y

$15.00

$27.00

$39.00

$51.00

Question

Eduardo teaches martial arts. He charges a one-time processing fee of $10.00 and the cost of each class is shown below. Let x represent the number of classes and y represent the cost of classes. Based on this information, what will it cost, in dollars, to take 8 classes? 


Cost of classes (not including processing fee)
 


Number of Classes, x
 
1
 
2
 
3
 
4
 


Cost of Classes, y
 
$15.00
 
$27.00
 
$39.00
 
$51.00

anonymous · Answer

Perpendicular slopes are negative reciprocals of each other. So the slope of y = 3x + 5 is 3, but the perpendicular slope would have to be -1/3.

anonymous · Answer

106.00
12x+10=y
y=106