Quite simple' let m = $0.02 let b = $2 and we have x = 68 min. Therefore monthly cost C would be: C=mx+b C=0.02(68)+2 C=1.36+2 C=3.36 i.e C is equal to $3.36

# The Equation C=mx+b Can Be Used To Model The Monthly Cost, C, Of A Cell Phone Plan Where B Is The Flat Monthly Cost, M Represents The Cost In Dollars Per Minute And X Is The Number, Can You Help?

The equation C=mx+b can be used to model the monthly cost, C, of a cell phone plan where b is the flat monthly cost, m represents the cost in dollars per minute and x is the number of minutes used in the month. Choose a flat monthly rate and cost per minute and insert the values you have chosen for m and b into the equation. Then use this equation to find the total monthly cost, C, if 82 minutes are used.

If 73 minute are used

If 73 minutes are used.