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Natasha_Volkova [10]
3 years ago
12

Find the interval in which the function is positive x^2-x-6=y

Mathematics
2 answers:
Alenkinab [10]3 years ago
7 0

9514 1404 393

Answer:

  (-∞, -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, ∞).

Semmy [17]3 years ago
6 0

Answer:

(-INFINITY , -2) (3 , INFINITY)

Function is positive when above the x axis

Function is below the x axis between -2 and 3

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