Problem 89


The top graph shows part A) and shows that the profit will always be greater with the percent tax. and the profits start to drop after 1000 cigars are produced.

The bottom graph shows part D) and shows the profit will always be greater with the percent tax, but at 1000 cigars produced they will be equal.

I would choose the flat tax in either case

Problem 85)
A) the thermostat is set to 65 at night and 72 during the day
Changing the thermostat to T(t)-2 will yield the nighttime temperature to 63 and the daytime to 70. This will shift the graph down by 2 in the y axis
C) Changing the thermostat to T(t-1) will yield the nighttime temperature to start 1 hour earlier. this will shift the graph to the left by 1 in the x axis