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line L

by ST » Tue May 26, 2009 4:16 pm
could someone please explain why answer is III?


ST
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Re: line L

by dtweah » Tue May 26, 2009 4:26 pm
ST wrote:could someone please explain why answer is III?


ST
y=mx +b

y=mx +4

0 =mx +4
x= -4/m

Since m is negative, x intercept must be a positive number. The only positive number is 6.
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