Comments on: What is the limit as x approaches 3 from the left? http://cutframetv.com/x/what-is-the-limit-as-x-approaches-3-from-the-left Tue, 22 May 2012 11:45:45 +0000 http://wordpress.org/?v=2.7 hourly 1 By: kro t http://cutframetv.com/x/what-is-the-limit-as-x-approaches-3-from-the-left/comment-page-1#comment-10063 kro t Tue, 27 Oct 2009 07:31:59 +0000 http://cutframetv.com/x/what-is-the-limit-as-x-approaches-3-from-the-left#comment-10063 from the left: that means you plug in values just to the left of 3 on a number line, like 2.999 so (4*2.999 - 12)/(3-2.999) = -4 (4*2.9999 - 12)/(3-2.9999)= -4 so -4 from the right: so (4*3.001 - 12)/(3-3.001) = -4 (4*3.0001 - 12)/(3-3.0001)= -4 so -4 which we could have determined by factoring the problem (4x - 12)/(3- x) = -4(3 - x)/(3 - x) = -4!<br><b>References : </b><br> from the left:
that means you plug in values just to the left of 3 on a number line, like 2.999

so (4*2.999 - 12)/(3-2.999) = -4
(4*2.9999 - 12)/(3-2.9999)= -4

so -4

from the right:
so (4*3.001 - 12)/(3-3.001) = -4
(4*3.0001 - 12)/(3-3.0001)= -4

so -4

which we could have determined by factoring the problem

(4x - 12)/(3- x) = -4(3 - x)/(3 - x) = -4!
References :

]]>