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# m21#33

Author Message
Manager
Joined: 18 Aug 2010
Posts: 90

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26 Jan 2011, 13:07
What is the area of the triangle formed by lines $$y = 5 - x$$ , $$2y = 3x$$ , and $$y = 0$$ ?
* 7.5
* 8.0
* 9.0
* 10.5
* 15.0

*

The vertices of the triangle are $$(0, 0)$$ , $$(5, 0)$$ , and $$(2, 3)$$ . The area $$=\text{base}*\frac{\text{height}}{2} = 5*\frac{3}{2} = 7.5$$ .

hello, can someone explain why vertices are ( 2,3) ?
and what would be corresponding graph for$$2y = 3x$$?
thanks
Math Expert
Joined: 02 Sep 2009
Posts: 39718

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26 Jan 2011, 13:19
tinki wrote:
What is the area of the triangle formed by lines $$y = 5 - x$$ , $$2y = 3x$$ , and $$y = 0$$ ?
* 7.5
* 8.0
* 9.0
* 10.5
* 15.0

*

The vertices of the triangle are $$(0, 0)$$ , $$(5, 0)$$ , and $$(2, 3)$$ . The area $$=\text{base}*\frac{\text{height}}{2} = 5*\frac{3}{2} = 7.5$$ .

hello, can someone explain why vertices are ( 2,3) ?
and what would be corresponding graph for$$2y = 3x$$?
thanks

Discussed here: m21-33-coordinate-geometry-95493.html
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Re: m21#33   [#permalink] 26 Jan 2011, 13:19
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# m21#33

Moderator: Bunuel

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