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arodriguez395
03.01.2020 •
Mathematics
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|y < 16}.
the domain is all real numbers. the range is {y|y ≤ 16}.
the domain is {x|–5 < x < 3}. the range is {y|y < 16}.
the domain is {x|–5 ≤ x ≤ 3}. the range is {y|y ≤ 16}.
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Ответ:
First, you can simplify the function finding the perfect square:
This form of function gives you the coordinates of parabola vertex - (-1,16).
From the diagram you can see that all values for x are possible, then the domain is
(all real numbers). Also you can see that values of y decrease from y=16 to
, then the range is
(or {y|y ≤ 16}).
correct choice is B.
Ответ:
The vertex form of the function is:
f(x) = -(x+1)2 +16
This means that the graph is facing downwards with the vertex at (-1,16).
So, the range is {y|y ≤ 16}
Ответ:
uhhh i think 2
Step-by-step explanation: