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What is the x-intercept of the line with the equation y = 3x − 6? [#permalink]

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31 Oct 2018, 03:26

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75% (00:22) correct

25% (00:38) wrong

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What is the x-intercept of the line with the equation y = 3x − 6?

−6

- 1/2

0

2

3

Spoiler: OA

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Re: What is the x-intercept of the line with the equation y = 3x − 6? [#permalink]

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31 Oct 2018, 06:03

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Baten80 wrote:

What is the x-intercept of the line with the equation y = 3x − 6?

A) −6
B) - 1/2
C) 0
D) 2
E) 3

KEY CONCEPT: The x-intercept is the point where the y-coordinate = 0

So, take the equation of the line, y = 3x - 6, and replace y with 0 to get: 0 = 3x - 6
Solve, to get x = 2
So, the point (2, 0) lies ON the line, which means the x-intercept is 2

Answer: D

Cheers,
Brent
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Re: What is the x-intercept of the line with the equation y = 3x − 6? [#permalink] 31 Oct 2018, 06:03

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What is the x-intercept of the line with the equation y = 3x − 6?

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