samstarnes3 samstarnes3

20-09-2022
Mathematics

Answered

A phone company 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 470 minutes, the
monthly cost will be $90.50. If the customer uses 840 minutes, the monthly cost will be $146.
(a) Find a linear equation for y, the monthly cost in dollars, of the cell plan as a function of x, the number of monthly minutes used.
y=
(b) Interpret the slope and y-intercept of the equation.
The-Selects the $
flat monthly fee, and the Select---
(c) Use your equation to find the total monthly cost if 764 minutes are used.
is the $
fee for each additional minute used.

Answer :

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