SOLUTION: The phone company NextFell has a monthly plan where a customer pays a flat monthly fee, and then a set rate per minute. If a customer uses 380 minutes, the monthly cost will be $19
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Question 1178841: The phone company NextFell has a monthly plan where a customer pays a flat monthly fee, and then a set rate per minute. If a customer uses 380 minutes, the monthly cost will be $196. If the customer uses 690 minutes, the monthly cost will be $335.5.
Find the equation of the plan in the form y=mx+b, where x is the number of monthly minutes used and y is the total monthly cost of the NextFell plan.
y =
If a customer uses 838 minutes, the total cost will be =
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
Description is same as to find the slope-intercept equation for a line containing the two points, (380, 196) and (690, 335.5).
pick either point.
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