Nina makes and sells necklaces. For n necklaces, her revenue function is r(n) = 11.75n and her cost function is c(n) = 8.9 + 1.2n.

Which function is Nina’s profit function?

p(n) = 10.55n – 8.9

p(n) = 12.95n – 8.9

p(n) = 12.95n + 8.9

p(n) = 14.1n + 8.9

Question

Nina makes and sells necklaces. For n necklaces, her revenue function is r(n) = 11.75n and her cost function is c(n) = 8.9 + 1.2n. 

Which function is Nina’s profit function?
		
p(n) = 10.55n – 8.9 
		
p(n) = 12.95n – 8.9
		
p(n) = 12.95n + 8.9
		
p(n) = 14.1n + 8.9

ragingsquirrel · Answer

p(n)=(11.75n)-(8.9+1.2n)
Distribute the negative.
p(n)=11.75n-8.9-1.2n
p(n)=10.55-8.9

anonymous · Answer

thanks my friend.