I believe that knowing both facts is sufficient to answer the question, but both alone are not sufficient.
If we know the slope, that doesn't imply that it will intersect the circle because we don't know where it will cross the x axis.
If we know the x intercept, we don't know what the slope is so we can't say if it intersects the cirlce or not.
GMAT prep
This topic has expert replies
Source: Beat The GMAT — Data Sufficiency |
- awesomeusername
- Master | Next Rank: 500 Posts
- Posts: 226
- Joined: Tue Jan 13, 2009 1:27 pm
- Thanked: 23 times
- Followed by:1 members
Ans is E
1) implies the line cuts x axis at a point x>1
Insuff because we can draw a line intersecting the circle or not intersecting the circle with this info
2) slope is given. we cant tell the position of the line only with slope - insuff
combining both, still we can draw a line with slope -1/10 which intersects the circle => when x intercept is near 1
also we can shift the line well above parallely such that x intercept is >1 and it doesnt touch the circle
1) implies the line cuts x axis at a point x>1
Insuff because we can draw a line intersecting the circle or not intersecting the circle with this info
2) slope is given. we cant tell the position of the line only with slope - insuff
combining both, still we can draw a line with slope -1/10 which intersects the circle => when x intercept is near 1
also we can shift the line well above parallely such that x intercept is >1 and it doesnt touch the circle
--------------------------
i am back!
i am back!
-
chintudave
- Senior | Next Rank: 100 Posts
- Posts: 31
- Joined: Thu Sep 25, 2008 6:10 pm
- Thanked: 2 times
IMO - E
Had the x intercept been > 10 the two statements taken together would have solved the problem.
Had the x intercept been > 10 the two statements taken together would have solved the problem.
- gaggleofgirls
- Master | Next Rank: 500 Posts
- Posts: 138
- Joined: Thu Jan 15, 2009 7:52 am
- Location: Steamboat Springs, CO
- Thanked: 15 times

















