O GRAPHS AND FUNCTIONS Application problem with a linear function: Finding a coordinate.. The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 20 minutes of calls is $26.80, and the remaining credit after 39 minutes of calls is $23.76. What is the remaining credit after 48 minutes of calls? Remaining credit (in dollars) Calling time (in minutes) Explanation Check II

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A: I am attaching image so that you understand each and every step.