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24 October, 14:03

Carla pays $20 per month for her phone service, plus $0.08 for each long

distance minute used. Which of the following correctly describes the slope?

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Answers (1)
  1. 24 October, 15:52
    0
    Slope = 0.08 dollars per minutes.

    Step-by-step explanation:

    Carla pays $20 per month for her phone service, plus $0.08 for each long-distance minute used.

    Therefore, if Carla talks for m minutes in the long-distance call, then the situation can be modeled by the equation

    C = 20 + 0.08m ... (1), where C is the total cost for her phone service per month.

    Here, 20 is the fixed price and 0.08m is the variable price for her phone charges.

    This equation (1) represents a straight line with y-intercept as 20 and the slope as 0.08, where m plotted along x-axis and C is plotted along the y-axis. (Answer)
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