Given
P
=
f
(
x
)
\displaystyle {P}={f{{\left({x}\right)}}}
P
=
f
(
x
)
where
P
\displaystyle {P}
P
is the profit in thousand of dollars and
x
\displaystyle {x}
x
is the number of units sold, which of the following is the best interpretation of
f
−
1
(
\displaystyle {{f}^{{-{{1}}}}{(}}
f
−
1
(
20
)
=
\displaystyle {)}=
)
=
180?
It will cost $20 to make 180 units.
It will cost $20,000 to make 180 units.
If the company has a profit of $180,000, they will have sold 20 units.
If the company has a profit of $2,000, they will have sold 180 units.
If the company has a profit of $20,000, they will have sold 180 units.
If the company has a profit of $180, they will have sold 20 units.
If the company has a profit of $20, they will have sold 180 units.
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