Lesson: Graphing Lines

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Pls help with the following question: https://gmatclub.com/forum/on-the-graph-above-when-x-1-2-y-2-and-when-x-1-y-136560.html (Question No. 8 from OG 2017)
gmat-admin's picture

Is this why we say that a straight line is made of an infinite number of dots?
gmat-admin's picture

You bet! The same applies to the number line.

Cheers,
Brent

Hi Brent,
Grateful if you could provide me with your approach to solve this problem.
Thanks

In the xy-coordinate system, if (a, b) and (a+3, b+k) are two points on the line defined by the equation x = 3y - 7, then k =

A) 9
B) 3
C) 7/3
D) 1
E) 1/3

Please provide explanation!!
gmat-admin's picture

Glad to help!
Here's my full solution: https://gmatclub.com/forum/in-the-xy-coordinate-system-if-a-b-and-a-3-b-...

Cheers,
Brent

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