Mathematics
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Hayhayz (hayhayz):
What is the discontinuity of the function f(x) = the quantity of x squared minus 3 x minus 28, all over x plus 4? @zakkdanger
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OpenStudy (misty1212):
Hi!!
OpenStudy (misty1212):
hard to read, but whatever it is, set the denominator equal to zero and solve
OpenStudy (misty1212):
\[x+4=0\\
x=-4\]
OpenStudy (zakkdanger):
-4
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Hayhayz (hayhayz):
thats really all you do?
OpenStudy (misty1212):
really
easy right?q
Hayhayz (hayhayz):
so it would be (-4,-11)
OpenStudy (misty1212):
guess so, it is the only one with a -4 first right?
Hayhayz (hayhayz):
yeah
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OpenStudy (misty1212):
i can show you how to get the -11 if you like
Hayhayz (hayhayz):
yes please
OpenStudy (misty1212):
factor and cancel
OpenStudy (zakkdanger):
Sh!t she beat me to it. GOD DAMMIT
Hayhayz (hayhayz):
lol zakk
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OpenStudy (misty1212):
\[\frac{x^2-3x-28}{x+4}=\frac{(x+4)(x-7)}{x+4}=x-7\]
OpenStudy (misty1212):
then if \(x=-4\) plug it in to the cancelled answer and get \[-4-7=-11\]
OpenStudy (misty1212):
lol @jakelingo
Hayhayz (hayhayz):
Thank you! can i tag you in another one?
OpenStudy (misty1212):
sure i got ten minutes, but i bet zak can do it too
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Hayhayz (hayhayz):
alright
OpenStudy (zakkdanger):
0_0 Im here
OpenStudy (zakkdanger):
What the ?
OpenStudy (misty1212):
what happened to the ladies in your picture?
OpenStudy (zakkdanger):
IDK i was prankin peeps in chat then I posted one of me dressed like Sir Charles P. Scene