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Mark has a shipping business. If your package weighs 2 pounds or less, the shipping costs $4. If your package weighs more than 2 pounds, the shipping costs $9.
Write a piecewise function for this situation.

Respuesta :

So far I have:

(1.25 + 1) if x is in the interval (-inf,7]
(2.25 +1) if x is in the interval (7,13)
(3.50+1+3) if x is in the interval [13,inf)

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