SOLUTION: You purchase a prepaid telephone card. The card costs $12.00. Each minute you use costs $0.30. a)Determine the slope of the line that models these points. b)Find

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: You purchase a prepaid telephone card. The card costs $12.00. Each minute you use costs $0.30. a)Determine the slope of the line that models these points. b)Find       Log On


   

Question 61431This question is from textbook INTRODUCTORY ALGEBRA
: You purchase a prepaid telephone card. The card costs $12.00. Each minute you
use costs $0.30.
a)Determine the slope of the line that models these points.
b)Find the equation of the line for this graph.
This question is from textbook INTRODUCTORY ALGEBRA

Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
You purchase a prepaid telephone card. The card costs $12.00. Each minute you
use costs $0.30.
a)Determine the slope of the line that models these points.
The variable cost is the slope, m=.30
b)Find the equation of the line for this graph.
The fixed cost is, b=12
The slope intercept form of a line is highlight%28y=mx%2Bb%29
y=.30x+12
:
Happy Calculating!!!