The function f (x) = - x2 - 2x 15 is shown on the graph. what are the domain and range of the function? the domain is all real numbers. the range is y < 16. the domain is all real numbers. the range is y ≤ 16. the domain is - 5 < x < 3. the range is y < 16. the domain is - 5 ≤ x ≤ 3. the range is y ≤ 16.

Question

Brittany Watkins

18 September, 08:41

+1

Answers (2)

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Padilla · Answer 1

The domain is all real numbers. The range is y.

Anton Vazquez · Answer 2

-x^2 - 2x + 15 in vertex form is - (x^2 + 2x - 15) = - (x^2 + 2x + 1 - 16) = - (x + 1) ^2 + 16

Therefore, domain is all real numbers and range is y.