Solve
-The Altitude Above Sea Level of an Airplane Just $\mathrm { h } ( \mathrm { t } ) = 800 \mathrm { t } + 3173$

Solve.
-The altitude above sea level of an airplane just after taking off from an airport on a high plateau is given by the linear function $\mathrm { h } ( \mathrm { t } ) = 800 \mathrm { t } + 3173$ , where $\mathrm { h } ( \mathrm { t } )$ is in feet and $\mathrm { t }$ is the time in minutes since take-off. Find the altitude of the airplane after 4 minutes.

A) 6273 feet
B) 3200 feet
C) 6473 feet
D) 6373 feet