Math Problem Statement
On Tuesday nights, a skating rink offers a special student price.
It costs $2.00 for the first 20 minutes. After the first 20 minutes, it costs $0.05 per minute. Andrea skates every Tuesday night for a minimum of 30 minutes and a maximum of 1 hour. The time she skates places a restriction on the domain of the function that represents the cost for skating.
On the coordinate plane below, graph the portion of the function that best represents Andrea's cost for skating on Tuesday nights.
Solution
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Math Problem Analysis
Mathematical Concepts
Piecewise Functions
Linear Functions
Graphing
Formulas
C(t) = 2 for 0 ≤ t ≤ 20
C(t) = 2 + 0.05(t - 20) for 20 < t ≤ 60
Theorems
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Suitable Grade Level
Grades 8-10
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