Business Application

[nycmathguy]

Section 1.8
Question 58

See attachment.

Let me see.

For part (a), I know that profit = revenue minus cost or P = R - C.

P(t) = 341 + 3.2t - (254 - 9t + 1.1t^2)

P(t) = 341 + 3.2t - 254 + 9t - 1.1t^2

P(t) = 87 + 12.2t - 1.1t^2

For part (b), I simply graph all three functions on the same xy-plane.

You say?

 

[MathLover1]

correct

 

[nycmathguy]

correct

I think this is an interesting question.