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Vesna [10]
2 years ago
5

Which set of ordered pairs represent a function

Mathematics
1 answer:
spayn [35]2 years ago
3 0
The 3rd set, no x or y numbers are repeated.

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Between which two ordered pairs does the graph of f(x) = one-halfx2 + x – 9 cross the negative x-axis?
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Answer:

Step-by-step explanation:

we have that

f(x) = x^2 + x - 9

Using a graph tool

see the attached figure

The function represent a vertical parabola that open up

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The x-intercepts are the points when the y coordinate is equal to zero

The x-intercepts are the points (-3.5, 0)  and (2.5, 0)

so

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therefore, the answer is

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Answer:

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Step-by-step explanation:

Given a quadratic in standard form y = ax² + bx + c : a ≠ 0

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Substitute x = - 1 into f(x) for corresponding value of y

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Answer:

Step-by-step explanation:

There’s no equal sign.

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__________________________________

\sf\red{ANSWER}

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Step-by-step explanation:

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