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

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Senior Manager
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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, 04:26
Top Contributor
1
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

75% (00:23) correct 25% (00:37) wrong based on 68 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, 07:03
1
Top Contributor
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, 07:03
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What is the x-intercept of the line with the equation y = 3x − 6?

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