Interpret the Linear Equation

question 172

Multiple Choice

Interpret the linear equation.
-The monthly cost of a certain long distance service is given by the linear function y = 0.08x + 3.95 where y is in dollars and x is the amount of time in minutes called in a month. Find and interpret the slope and y-intercept of
The linear equation.

• A) m = 3; The number of minutes called in a month increases 3.95 for every dollar spent. b = 0.08; The number of minutes that can be called when x = 0 is 0.08.
• B) m = 0.08; The number of minutes called in a month increases 0.08 for every dollar spent. b = 3.95; The number of minutes that can be called when x = 0 is 3.95.
• C) m = 3.95; The cost of the long distance service increases $3.95 for every 1 minute called. b = 0.08; The cost of the long distance service is $0.08 if no calls are made for the month.
• D) m = 0.08; The cost of the long distance service increases $0.08 for every 1 minute called. b = 3.95; The cost of the long distance service is $3.95 if no calls are made for the month.