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Suppose the long-distance rate for a telephone call from Hazleton, Pennsylvania to Los Angeles,California, is 0.08 for the first minute or fraction thereof and 0.04 for each additional minute or fraction thereof. If y=f(t) is a function that indicates the total charge y for a call of t minutes duration, sketch the graph of f for 0<t ≤3 (1)/(2). Use your graph to determine the values of t, where 0<t ≤3 (1)/(2), at which discontinuities occur. | Numerade

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