"Decide if function f is invertible.
f(w) is the cost of mailing a package weighing w pounds."
a)yes it is invertible
b)no it is not invertible.

Question

"Decide if function f is invertible. 
f(w) is the cost of mailing a package weighing w pounds."
a)yes it is invertible 
b)no it is not invertible.

anonymous · Answer

i doubt it, since more than one weight will cost the same amount of money

anonymous · Answer

i thought it meant if i could turn the phrase around and it make sense..?

aravindg · Answer

$$\huge \text{WELCOME TO OPENSTUDY!}$$

anonymous · Answer

ah! sorry i didn't understand the bump button!

anonymous · Answer

no it means this
if you take a package of a given weight, it cost a specific amount of money to mail
if you could invert, that would mean if you knew how much it cost to mail, you would know the exact rate.
seems unlikely

anonymous · Answer

wow that's intense. thanks, now i will just reread your message a few times xD