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Louis14
Joined: 01 Nov 2019
Last visit: 04 Nov 2023
Posts: 249
Own Kudos:
Given Kudos: 472
Schools: NUS MiF "22 (A) LSE MFin "22 (S) HEC MFin "22
GMAT 1: 680 Q48 V34
GPA: 3.56
03 Mar 2020, 05:46
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What would be the y-intercept of a vertical line that passes through the origin?
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03 Mar 2020, 15:31
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Louis14
It wouldn't have one.
GMAT won't generally ask questions about things that are mathematically 'up in the air' or undefined in this way - it's similar to asking you what the value of 3/0 is, or 0^0. If you want a more mathematical rationale, think about how you calculate a y-intercept. The y-intercept is the point where x = 0, so, in order to find it, you plug in x = 0 to the equation of the line. However, a vertical line has no equation, since its slope is "infinite" - its equation is basically, y = (infinity)*x + something. What do you get when you plug in x = 0? No clue - I don't know what infinity*zero is, and neither does the GMAT.
Louis14
Joined: 01 Nov 2019
Last visit: 04 Nov 2023
Posts: 249
Own Kudos:
Given Kudos: 472
Schools: NUS MiF "22 (A) LSE MFin "22 (S) HEC MFin "22
GMAT 1: 680 Q48 V34
GPA: 3.56
03 Mar 2020, 16:02
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Bookmarks
ccooley
Well, the equation of a vertical line is given as: x=k, where k is some value on the x-axis. Did you miss that or am I missing something?
Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Quantitative Questions Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
