Question
If $f(x)=x^{2}+1,$ find $f(3)$ and $f(-3) .$ Is $f$ a one-to-one function?
Step 1
We do this by substituting $x=3$ into the function $f(x)=x^{2}+1$. So, $f(3)=3^{2}+1=9+1=10$. Show more…
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