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`        All points lying inside the triangle formed by the points (1,3),(5,0) and (-1,2) will satisfy relation--a) 3x+2y>_0 b) 2x+y-13 >_0c) 2x-3y-12 _0`
one year ago

Arun
18705 Points
```							Dear Lucky  If all the three vertices of a triangle lie on one side of a line , all the interior points of that triangle lie on the same side of that line. Now, Substituting the coordinates of the points (1,3), (5,0) and (-1,2) in 3x+2y, we get the following values, 8,15 and 1 which all are +ve.therefore, all the points lying inside the triangle formed by given points satisfy 3x+2y >= 0 In the same way, all the points lying inside the triangle formed by given points also satisfy 2x-3y-12   RegardsArun (askIITians forum expert)
```
one year ago
Lucky
27 Points
```							Thank you sir, I really got struck with that problem.now I get how to think for such type of questions
```
one year ago
Samuel Garry
61 Points
```							Is anybody having a better approach to deal with these types of questions can't we just take out specific equation of lines of family of lines which can be done by solving not just checking by the optionsAur in this question we have to check the answers just by putting them in options
```
3 months ago
Prakhar Mani Tripathi
13 Points
```							We can even check by position of a point with reapect to a line conceptFirstly plot the points rougly to get the idea that a point should be above or below the 3 sides of the triangle(you need to take out that) and get the required condition without the options. ....
```
2 months ago
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• Mind Map
• Study Planner
• NCERT Solutions
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