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Question 1174634: The phone company NextFell has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses 500 minutes, the monthly cost will be $237. If the customer uses 910 minutes, the monthly cost will be $401.
A) Find an equation in the form y=mx+b, where x is the number of monthly minutes used and y is the total monthly of the NextFell plan.
Answer: y=
B) Use your equation to find the total monthly cost if 652 minutes are used.
Answer: If 652 minutes are used, the total cost will be dollars.
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! make two ordered pairs (500, 237), (910, 401) with the independent variable (that can be selected) being x and the dependent variable (y) the result from x.
slope is 164/410=0.4
point slope formula y-y1=m(x-x1) m slope, (x1, y1) point
y-237=0.4(x-500)
y=0.4x+37
when x=652, y=$260.80+$37=$297.80.
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