# Algebra check

posted by
**Shawn**
.

Determine whether f(x)=x^2 is one to one.

When I substitute values in for x even when I use negative values x^2 will be positive so is it one to one?

posted by
**Shawn**
.

Determine whether f(x)=x^2 is one to one.

When I substitute values in for x even when I use negative values x^2 will be positive so is it one to one?