The exponential functions are and
, where
is measured in inches.
Distance to the right of the origin is ft.
Distance to the right of the origin means coordinate value.
.
Therefore, .
Find the height of the graph of .
Substitute in
.
inch.
ft.
Therefore, height of the function is
ft.
Consider .
Find the height of the graph of .
Substitute in
.
inch.
.
Therefore, height of the function is
mi.
Height of the function is
ft.
Height of the function is
mi.