SOLUTION: Determine if f(x)= 2+|x| is one- to- one

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Determine if f(x)= 2+|x| is one- to- one      Log On


   

Question 875744: Determine if f(x)= 2+|x| is one- to- one
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Graphing f(x)= 2+|x| gives

+graph%28+500%2C+500%2C+-10%2C+10%2C+-10%2C+10%2C+0%2C2%2Babs%28x%29%29+

and we see it fails the horizontal line test. So it is NOT one-to-one.