Aisha just received a $40 paycheck from her new job. She spends some of it buying music online and saves the rest in a bank account. Her savings is given by f(x) = 40 1.25x, where x is the number of songs she downloads at $1.25 per song.
a. Graph the function.

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edit: f(x) = 40 - 1.25x

@jim_thompson5910

put it in y = mx+b form
f(x) also means y
we just need rearranging for the formula

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