Are there any restrictions on domain or range for linear, quadratic, or square root functions?

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asked Sep 17, 2020 134k views

1 Answer

Aadmaa · Answer 1 · 2020-09-22T07:27:15+0000

Answer:

Quadratic functions have no domain restrictions. Since x2 ≥ 0, x2 + 7 ≥ 7. ... Negative values can be used for x, but the range is restricted because x2 ≥ 0. The correct answer is: The domain is all real numbers and the range is all real numbers f(x) such that f(x) ≥ 7.

Explanation:

Are there any restrictions on domain or range for linear, quadratic, or square root functions?

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