How do you find the domain and range of $y = x^2 + 86$ ?

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Answer 1 · 2017-07-18T09:22:53

There are to constraints.

Because there are no constraints the domais is :

$D=x in RR$

we know that $x^2>=0 iff x^2+86>=86 iff y>=86$

so the range is : $R=[86,+ oo)$

How do you find the domain and range of y = x^2 + 86y = x^2 + 86?