yo my real niqq3r @Luigi0210 and my niqer @awkwardpanda
XD "niqer"
okie bud lets start .
we left off at factoring yesterday for finding limits.
yus :3
let's see if you held the info. evaluate the limit \[\lim_{x \rightarrow 2} \frac{ 2x^2 - 3 }{ x + 5 }\]
\[\frac{ 2(2)^2-3}{ 2+5 }\]
yer
simplify
okai
7? >.>
\[\frac{ 5 }{ 7 }\]...
DENG IT it's the simple things that i forget ;-;
ok, you can do that later, first lets learn about discontinuities and then the conjugation method
okay :3
do you know how to find the domain of a rational function? or a function in general? this is a rational function \[f(x) = \frac{ x^2 - 5 }{ x+5 }\]
could you remind me pls .-.
ok, so you don't know.. let's start with the rational function.. you set the denominator to equal zero and solve .. \[x + 5 = 0\] x = -5 the domain is all real numbers except -5, because the denominator becomes 0 and you can't divide by zero. \[[D: \mathbb{R} : x \ne -5]\]
well that's not the correct notation for writing domain but w/e ill do that later.
its something like that i forget.
i get it, in a way XD
anyways -5 is the domain , the vertical asymptote where this function does not touch |dw:1383345187649:dw| the graph never touches -5
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