The temperature T (in degrees Fahrenheit) of saturated steam increases as pressure increases. This relationship can be approximated by the model
T = 75.82 ˆ’ 2.11x + 43.51 ˆšx

where x is the absolute pressure (in pounds per square inch).
(a) The temperature of saturated steam at sea level is 212°F. Find the absolute pressure at this temperature.
(b) Use a graphing utility to verify your solution for part(a)