This topic has expert replies
Master | Next Rank: 500 Posts
Posts: 424
Joined: 07 Dec 2008
Location: Sydney
Thanked: 12 times

Slope of Line

by piyush_nitt » Sun May 10, 2009 12:08 am
Does line k intersect quadrant II?

a. Slope of k is -1/6
b. Y intercept of k is -6

Master | Next Rank: 500 Posts
Posts: 125
Joined: 16 Sep 2007
Thanked: 6 times

Re: Slope of Line

by chetanojha » Sun May 10, 2009 12:29 am
A. only gives your slope of the line. But you need co-rodinateds to decide if it pass through any quadrant.
B. not information about any other co-ordinate.

Together, using slope and Y-intercept we can find out the co-ordinate by subtituting x=0 and themn y=0. Sufficient.

[
quote="piyush_nitt"]Does line k intersect quadrant II?

a. Slope of k is -1/6
b. Y intercept of k is -6[/quote]