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krek1111 [17]
3 years ago
10

What are the interval(s) on which the function Y =

Mathematics
2 answers:
Anton [14]3 years ago
8 0
Ajajajsjsjjsjsjdjdjdjdjd sorry but I need more points
Nitella [24]3 years ago
3 0

Answer:

Positive where x < -6 and x > 8.

Step-by-step explanation:

y = x^2 - 2x - 48

The graph of this is a parabola which opens upwards ( because the coefficient of x^2 ( = 1) is positive). So it will positive to the left and to the right of the points where  it passes through the x axis ( i e the zeros of the function).

x^2 - 2x - 48 =0

(x + 6)(x - 8) = 0

So the zeros are at x = (-6,0) and at (8, 0).

Therefore the intervals are  x < -6 and x > 8.

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Attached is an image for further information;

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