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

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

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New post 31 Oct 2018, 03:26
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00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

80% (00:14) correct 20% (00:50) wrong based on 35 sessions

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

−6

- 1/2

0

2

3

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

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New post 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? &nbs [#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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