Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Region R essentially means all the points on the line 2x + 3y = 6. If, I plot this line in XY plane, it will meet X-axis at (3,0) and Y-axis at (0,2).
Now stmt1 gives a line that meets X-axis at (2,0) and Y-axis at (0,3). This line definitely intersects the original line at one point. Hence, this is insufficient as only for one combination of r and s, this satisfies the original equation. For other combinations, it does not.
stmt 2: this is a point clearly not on the original line. Hence, sufficient.
In the xy-plane, region R consists of all the points (x, y) such that 2x + 3y = 6. Is the point (r, s) in region R ? (1) 3r + 2s = 6 (2) r = 3 and s = 2
Looks like we are missing something in this question..
region R consists of all the points (x, y) such that 2x + 3y = 6 -- this is line not a region.. so I believe we are missing <= or >= then it may be region. ( 2x + 3y <= 6 or 2x + 3y >= 6 represents region)
Your attitude determines your altitude Smiling wins more friends than frowning
The equation 2x + 3y = 6 represent the line, it can not represent the region........ question itself might be wrong.....however it appeared to me as it is and that's why i could not understood it. the source is unknowm (some papers in PDF Form)
Last edited by vivektripathi on 18 Sep 2008, 10:47, edited 1 time in total.