BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Coordinates of point S

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Source: — Problem Solving |
User avatar
Site Admin
Posts: 2567
Joined: Thu Jan 01, 2009 10:05 am
Thanked: 712 times
Followed by:550 members
GMAT Score:770

by DanaJ » Sat Jan 17, 2009 11:04 pm
The equation for line AS will be:
y = 1/2x + a. Since A is a point on this line then you get 0 = 1/2 * 0 + a. That makes a = 0. So the equation of line AS is y = 1/2x.
The equation for line BS will be:
y = 2/3x + b. Since B is a point on this line you have 0 = 2/3 * 5 + b, making b = -10/3.
Now to find out S, you have to consider y = y, meaning that 1/2x = 2/3x - 10/3, giving you 1/6x = 10/3 , with x = 20. y will be 1/2x = 10. So S has the coordinates (20,10).
Top
Post new topic Post Reply
• Page 1 of 1