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    Calculate remaining minutes on phone card.

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    1. The credit remaining on a phone card(in dollars)is a linear function
    of the total calling time (in minutes). When graphed, the function
    gives a line with a slope of -0.15. There is 29.35 in credit remaining
    on the card after 29 minutes of calls. How much credit will there be
    after 41 minutes of calls?

    2. Write an equation of the line with points(-6,2) and (-1,1).

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    https://brainmass.com/math/algebra/calculate-remaining-minutes-phone-card-276059

    Solution Preview

    1. The credit remaining on a phone card(in dollars)is a linear function
    of the total calling time (in minutes). When graphed, the function
    gives a line with a slope of -0.15. There is 29.35 in credit remaining
    on the card after 29 minutes of calls. How much credit will there be
    after 41 minutes of calls?

    Let y is the credit remaining on ...

    Solution Summary

    The expert calculates minutes on phone card. The equation of the line with points are written.

    $2.19