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tanyajoseph
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 Posted: Mon Sep 03, 2007 12:50 pm Post subject: value of b |
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In the xy plane, the line with eqn., ax+by+c=0, where abc is not equal to 0, has slope 2/3. WHat is the value of b?
1) a = 4
2) c= -6 |
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ratindasgupta
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| Posted: Tue Sep 04, 2007 3:09 am Post subject: Re: value of b |
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| tanyajoseph wrote: | In the xy plane, the line with eqn., ax+by+c=0, where abc is not equal to 0, has slope 2/3. WHat is the value of b?
1) a = 4
2) c= -6 |
ax + by + c = 0
so y = -(a/b)x + c/b
-(a/b) = 2/3
1) a = 4. So b can be obained. SUFF
2) c = -6. Irrelevant info. INSUFF
Answer is A |
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