# The function f gives the weekly profit, in thousand dollars, that an airline makes on its flights from Boston to Washington D.C. when the ticket price is p dollars. Interpret the following.(a)    f(70) = 30When the ticket price is \$ , the weekly profit to the airline on flights from Boston to Washington is \$ .(b)    f '(70) = 1.5When the ticket price is \$ , the weekly profit to the airline on flights from Boston to Washington isby \$ per dollar (of ticket price).(c)    f '(95) = −1When the ticket price is \$ , the weekly profit to the airline on flights from Boston to Washington isby \$ per dollar (of ticket price).

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The function f gives the weekly profit, in thousand dollars, that an airline makes on its flights from Boston to Washington D.C. when the ticket price is p dollars. Interpret the following.

(a)
f(70) = 30
When the ticket price is \$ , the weekly profit to the airline on flights from Boston to Washington is \$ .

(b)
f '(70) = 1.5
When the ticket price is \$ , the weekly profit to the airline on flights from Boston to Washington is
by \$ per dollar (of ticket price).

(c)

f '(95) = −1
When the ticket price is \$ , the weekly profit to the airline on flights from Boston to Washington is

by \$ per dollar (of ticket price).

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Step 1:f(70) = 30

Step 2: f '(70) = 1.5

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