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Finger [1]
2 years ago
9

Brianna wants to plot -2 and - 6 on a number line. Which statement is true?

Mathematics
1 answer:
FinnZ [79.3K]2 years ago
7 0

Answer:

<h2>yes this is right and true</h2>

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Select all the correct equations.
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Answer:

You did not post the options, but i will try to answer this in a general way.

Because we have two solutions, i know that we are talking about quadratic equations, of the form of:

0 = a*x^2 + b*x + c.

There are two easy ways to see if the solutions of this equation are real or not.

1) look at the graph, if the graph touches the x-axis, then we have real solutions (if the graph does not touch the x-axis, we have complex solutions).

2) look at the determinant.

The determinant of a quadratic equation is:

D = b^2 - 4*a*c.

if D > 0, we have two real solutions.

if D = 0, we have one real solution (or two real solutions that are equal)

if D < 0, we have two complex solutions.

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3 years ago
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