Posted by Shawn on Sunday, November 30, 2008 at 7:59pm.
Determine whether f(x)=x^2 is one to one.
I have the answer as yes. Is this right

Algebra check  drwls, Sunday, November 30, 2008 at 8:03pm
I don't know what you mean by "one to one" for a function. It is true that for each x there is one y.

Algebra check  Damon, Sunday, November 30, 2008 at 8:03pm
for every value of x there is one and only one value of f(x)
[That means f(x) is a function of x]
however for every value of f(x) there are two values of x
[ that means that the inverse is not a function]

Algebra check Damon  Shawn, Sunday, November 30, 2008 at 9:05pm
Not a function but is it one to one?

Thanks  Shawn, Sunday, November 30, 2008 at 9:27pm
Thanks
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