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**Amy** 1. The cost of sending an overnight package from New York to Atlanta is $9.80 for a package weighing up to but not including 1 pound and $2.50 for each additional pound or portion of a pound. Use the greatest integer function to create a model for the cost C of overnight of a package weighing x pounds, where x > 0. Sketch the graph of the function.

2. Your wage is $8.00 per hour plus $0.75 for each unit produced hour. So, your hourly wage y in terms of the number of units produced x is y = 8 + 0.75x.

Find the inverse function. What does each variable in the inverse function represents?

for the first one, is it

C= 9,whenx<1

=9+[2.5x],whenx>or=1

Second one,

x=(y-8)/.75