Question

How would you determine if a function is one to one?

Answer 1

Horizontal line test (after you've done the vertical line test to verify that it is indeed a function)

Answer 2

Is there a way to do it algebraically?

Answer 3

Yes, prove that \(f(x) = f(y)\)

Answer 4

Ok I understand. Thank you for your help!

Answer 5

Sorry, I meant prove \(x = y\) when \(f(x) = f(y)\) but I think you got it.

Answer 6

Yeah I get it :)