anonymous
  • anonymous
.
Mathematics
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anonymous
  • anonymous
.
Mathematics
schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
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anonymous
  • anonymous
Vocaloid
  • Vocaloid
well, first start by factoring the numerator
anonymous
  • anonymous
|dw:1440350088787:dw| Thats what it looks like

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anonymous
  • anonymous
im not sure how to factor the top
anonymous
  • anonymous
x(x-3...?
freckles
  • freckles
you know @jcoury you don't have to do all that work
anonymous
  • anonymous
?
freckles
  • freckles
all the x values are different in the choices just find when the bottom is zero
anonymous
  • anonymous
yeah but that is -4 but look at the answer choices
freckles
  • freckles
there is only one choice with x as -4
freckles
  • freckles
you don't need to find y
anonymous
  • anonymous
D?
anonymous
  • anonymous
??
freckles
  • freckles
yep that is the only choice that has x as -4
freckles
  • freckles
however
freckles
  • freckles
if you want to find the y-coordinate you can factor the top and cancel out the common factor of (x+4) after so then plug in x as -4 to find the corresponding y value is -11
anonymous
  • anonymous
kk
anonymous
  • anonymous
thx
anonymous
  • anonymous
that us ut
anonymous
  • anonymous
it^
freckles
  • freckles
it might be good practice to do so
anonymous
  • anonymous
k
anonymous
  • anonymous
can u help with one more @freckles
freckles
  • freckles
k
anonymous
  • anonymous
What is the discontinuity and zero of the function f(x) = the quantity of 2 x squared plus 5 x minus 12, all over x plus 4?
anonymous
  • anonymous
Discontinuity at (−4, −11), zero at (three halves , 0) Discontinuity at (−4, −11), zero at (negative three halves , 0) Discontinuity at (4, 5), zero at ( three halves , 0) Discontinuity at (4, 5), zero at (negative three halves , 0)
anonymous
  • anonymous
|dw:1440350394355:dw|
freckles
  • freckles
so to find the 0 find when the top is 0 that is solve 2x^2+5x-12=0
anonymous
  • anonymous
-4,3/2?
freckles
  • freckles
ok but one of those is where you have a discontinuity (a hole in this case) and the other is where you have a zero
anonymous
  • anonymous
So can't you just find the answer now without the y's so it would be A?
freckles
  • freckles
that is right a hole at x=-4 and a zero at x=3/2
anonymous
  • anonymous
so A
freckles
  • freckles
is that the same question you just asked and I said yes "that is right"
anonymous
  • anonymous
yes just making sure because this is an online course and there can be alot of bugs so i wanted to make sure sorry
freckles
  • freckles
np
anonymous
  • anonymous
is it okay if i tag you in another question?
anonymous
  • anonymous
later?

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