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#### Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.  # In the line xy plane line m has the equation y=3x-8, then

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Intern  Joined: 14 Mar 2010
Posts: 41
In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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Question Stats: 85% (00:51) correct 15% (01:31) wrong based on 142 sessions

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In the line xy plane line m has the equation y = 3x - 8, then the line m passes through which of the following points?

A. (3, 1)
B. (3, 4)
C. (4, 2)
D. (6, 9)
E. (6, 15)

Originally posted by monir6000 on 24 Apr 2012, 23:13.
Last edited by Bunuel on 11 Oct 2013, 01:08, edited 2 times in total.
Edited the question.
Math Expert V
Joined: 02 Sep 2009
Posts: 62499
Re: In the line xy plane line m has the equation y=3x+8, then  [#permalink]

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monir6000 wrote:
In the line xy plane line m has the equation y=3x+8, then the line m passes through which of the following points?

A. (3, 1)
B. (3, 4)
C. (4, 2)
D. (6, 9)
E. (6, 15)

The line with equation y=3x+8 passes through none of the points given in answer choices.

Since OA given as A. (3, 1) then I guess the equation should be $$y=3x-8$$ (instead of y=3x+8). In this case if x=3 then y=3*3-8=1.

Please check the question once more.
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Intern  Joined: 29 Feb 2012
Posts: 8
Re: In the line xy plane line m has the equation y=3x+8, then  [#permalink]

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The equation of the line is incorrect i think

presently, none satisfies the equation
Intern  Status: the final crusade is on
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Re: In the line xy plane line m has the equation y=3x+8, then  [#permalink]

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wrong question as none of the points satisfies the equation
Intern  Joined: 14 Mar 2010
Posts: 41
Re: In the line xy plane line m has the equation y=3x+8, then  [#permalink]

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Yes it is y=3x-8....extremely sorry for mistake....
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Re: In the line xy plane line m has the equation y=3x+8, then  [#permalink]

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Yes when we plot the graph, it seems that none of the points can pass through the line!!!
Manager  Joined: 07 May 2013
Posts: 86
Re: In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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Yes it is y=3x-8....extremely sorry for mistake....

IF that's the case then answer is A
y=3x-8
1=3X3-8
1=9-8
1=1 (satisfied)
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Re: In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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paras123 wrote:
wrong question as none of the points satisfies the equation

The question is correct. Any one of the point mentioned below will satisfy the equation and clearly option A does it.
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Joined: 21 Aug 2019
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Re: In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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Bunuel wrote:
monir6000 wrote:
In the line xy plane line m has the equation y=3x+8, then the line m passes through which of the following points?

A. (3, 1)
B. (3, 4)
C. (4, 2)
D. (6, 9)
E. (6, 15)

The line with equation y=3x+8 passes through none of the points given in answer choices.

Since OA given as A. (3, 1) then I guess the equation should be $$y=3x-8$$ (instead of y=3x+8). In this case if x=3 then y=3*3-8=1.

Please check the question once more.

Can we find the values of (x,y) by putting x = 0 for y and vice versa?
Because I tried but I didnt get the correct answer
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Math Expert V
Joined: 02 Sep 2009
Posts: 62499
Re: In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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Farina wrote:
Bunuel wrote:
monir6000 wrote:
In the line xy plane line m has the equation y=3x+8, then the line m passes through which of the following points?

A. (3, 1)
B. (3, 4)
C. (4, 2)
D. (6, 9)
E. (6, 15)

The line with equation y=3x+8 passes through none of the points given in answer choices.

Since OA given as A. (3, 1) then I guess the equation should be $$y=3x-8$$ (instead of y=3x+8). In this case if x=3 then y=3*3-8=1.

Please check the question once more.

Can we find the values of (x,y) by putting x = 0 for y and vice versa?
Because I tried but I didnt get the correct answer

x = 0 gives the y-intercept of the line: x = 0, y = -8, so the line intersect y-axis at (0, -8).
y = 0 gives the x-intercept of the line: y = 0, x = 8/3, so the line intersect x-axis at (8/3, 0).
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Joined: 21 Aug 2019
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Re: In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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The line with equation y=3x+8 passes through none of the points given in answer choices.

Since OA given as A. (3, 1) then I guess the equation should be $$y=3x-8$$ (instead of y=3x+8). In this case if x=3 then y=3*3-8=1.

Please check the question once more.[/quote]

Can we find the values of (x,y) by putting x = 0 for y and vice versa?
Because I tried but I didnt get the correct answer[/quote]

x = 0 gives the y-intercept of the line: x = 0, y = -8, so the line intersect y-axis at (0, -8).
y = 0 gives the x-intercept of the line: y = 0, x = 8/3, so the line intersect x-axis at (8/3, 0).[/quote]

Yes but (8/3, -8) is not any option in the given choices
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Math Expert V
Joined: 02 Sep 2009
Posts: 62499
In the line xy plane line m has the equation y=3x-8, then  [#permalink]

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1
Farina wrote:
x = 0 gives the y-intercept of the line: x = 0, y = -8, so the line intersect y-axis at (0, -8).
y = 0 gives the x-intercept of the line: y = 0, x = 8/3, so the line intersect x-axis at (8/3, 0).

Yes but (8/3, -8) is not any option in the given choices[/quote]

I'm NOT saying that the line passes through (8/3, -8). I said that IF you put x = 0, you get the y-intercept of the line, which is (0, -8). and if you put y = 0, you get the x-intercept of the line, which is (8/3, 0)..

I think links below should help solving Coordinate Geometry questions:

24. Coordinate Geometry

_________________ In the line xy plane line m has the equation y=3x-8, then   [#permalink] 19 Feb 2020, 01:21
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