veah808
17.11.2020 •
Mathematics
Find the interval in which the function is positive x^2-x-6=y
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Ответ:
(-INFINITY , -2) (3 , INFINITY)
Function is positive when above the x axis
Function is below the x axis between -2 and 3
Ответ:
9514 1404 393
(-∞, -2) ∪ (3, ∞)
Step-by-step explanation:
The function can be factored as ...
(x +2)(x -3) = y
The leading coefficient is positive, so the parabola opens upward. It will be positive up to the left-most zero, and positive again to the right of the right-most zero. That is, the function is positive everywhere outside the interval [-2, 3], where it is not.
The function is positive on (-∞, -2) ∪ (3, ∞).
Ответ:
T≥35. 36 is a possible solution.
Step-by-step explanation:
Atleast means that the number indicated is included thus a greater than or equal to sign is used.