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hilzepesqtatiana
18.01.2022 •
Mathematics
X³ by a³ + a³by x³=p x³by a³- a³by ³=q eliminate x
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Ответ:
Step-by-step explanation:
Ответ:
The correct option is 2.
Step-by-step explanation:
The range of a parabola is {y|y ≤ 5}.
It means the maximum value of the function is 5. It is possible if the vertex of a downward parabola is in the form of (h,5).
The vertex form of a parabola is
Where, (h,k) is vertex and a is a constant.
If a<0, then f(x) is a down ward parabola and if a>0, then f(x) is an upward parabola.
In option 1,
It is an upward parabola with vertex (4,5), therefore the range of the function is {y|y ≥ 5}. Option 1 is incorrect.
In option 2,
It is a downward parabola with vertex (4,5), therefore the range of the function is {y|y ≤ 5}. Option 2 is correct.
In option 3,
It is an upward parabola with vertex (5,4), therefore the range of the function is {y|y ≥ 4}. Option 3 is incorrect.
In option 4,
It is a downward parabola with vertex (5,4), therefore the range of the function is {y|y ≤ 4}. Option 4 is incorrect.