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Line L in the xy-plane is given by the equation 6x + 8y = 72

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Carcass
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Line L in the xy-plane is given by the equation 6x + 8y = 72 [#permalink] New post   07 Dec 2020, 10:07
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Line L in the xy-plane is given by the equation 6x + 8y = 72.

Quantity A
Quantity B
The x-coordinate of the x-intercept of line L
The y-coordinate of the y-intercept of line L



A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

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Re: Line L in the xy-plane is given by the equation 6x + 8y = 72 [#permalink] New post   08 Dec 2020, 12:36
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Carcass wrote:
Line L in the xy-plane is given by the equation 6x + 8y = 72.

Quantity A
Quantity B
The x-coordinate of the x-intercept of line L
The y-coordinate of the y-intercept of line L



The x-intercept of a line is the point on the line where y = 0
Take 6x + 8y = 72
Replace y with 0 to get: 6x + 8(0) = 72
Solve: x = 12
So, x = 12 at the x-intercept of line L

The y-intercept of a line is the point on the line where x = 0
Take 6x + 8y = 72
Replace x with 0 to get: 6(0) + 8y = 72
Solve: y = 9
So, y = 9 at the y-intercept of line L

We have:
QUANTITY A: 12
QUANTITY B: 9

Answer: A
Prep Club for GRE Bot
gmatclubot
Re: Line L in the xy-plane is given by the equation 6x + 8y = 72 [#permalink]
08 Dec 2020, 12:36
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