Functions 4 The number of window panes a
company can produce is a function of time
t, measured in hours of operation per day,
and is given by w(1) = 7+ - 3. The company's
profit $P is a function of the number of
windows sold, given by P(w) = 50w - 2000.
a Find the company's profit (or loss) if it
operates for 4 hours a day.
b Find the company's profit as a function of
time, expressed in the form P(t) = m + c
where m, CER.
Determine ihe number of hours (to
the nearest hour) that the factory must
operate in order to earn a (positive) profit.
5 Show that the temperature conversion
с
-17.8 and
5
functions C(x) = -X-17.8 and
9
9.
Fox) = x+32 are approximate inverses of
5.
cach other.​