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Piecewise Functions and Real-World Constraints
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Calculus I
CAL1.4 Piecewise Functions and Real-World Constraints
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A time-of-day rate is R(t)=6 for 0≤t<6, R(t)=10 for 6≤t<18, and R(t)=8 for 18≤t<24, where t is hours after midnight. Which rule applies at t=18?
A
R(t)=6 for 0≤t<6.
B
R(t)=10 for 6≤t<18.
C
R(t)=8 for 18≤t<24.
D
No rule applies because t=18 is a boundary.
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