Mathematics
24 Online
zarkam21:
True?
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zarkam21:
zarkam21:
@Vocaloid
Vocaloid:
yeah that's true
zarkam21:
zarkam21:
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zarkam21:
C
zarkam21:
NO actually A
Vocaloid:
yeah sorry for the delay I'm just trying to re-teach myself this
should be A according to my graphs
zarkam21:
no its alright
zarkam21:
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zarkam21:
False
Vocaloid:
good, that's right
zarkam21:
Vocaloid:
should be the square root of the first denominator so 5
zarkam21:
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Vocaloid:
wait wait for the other one the entire axis is 2a so 10 not 5
Vocaloid:
anyway, for conjugate axis, it's 2*sqrt(the second denominator) so 2*12 = 24
zarkam21:
zarkam21:
true?
Vocaloid:
good true
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zarkam21:
(0,0)
zarkam21:
Vocaloid:
good
zarkam21:
Vocaloid:
yup gud
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zarkam21:
zarkam21:
(2,0)
zarkam21:
still there?
Vocaloid:
|dw:1517607819251:dw|
Vocaloid:
use the last one to determine what p is equal to
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zarkam21:
p=-y^2/8x
Vocaloid:
|dw:1517608017359:dw|
Vocaloid:
what is p equal to after you cancel out like terms on each side?
zarkam21:
so 1/4?
zarkam21:
or this entire equation
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Vocaloid:
|dw:1517608212268:dw|
Vocaloid:
4p = 8
p = ?
zarkam21:
2
Vocaloid:
good, and the focal width is just 4p so focal width = 8 = your answer
zarkam21:
so just 8
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Vocaloid:
yes
zarkam21:
B?
zarkam21:
Vocaloid:
that's the same question as before
zarkam21:
lol sorry
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zarkam21:
Vocaloid:
yeah b
zarkam21:
zarkam21:
false
Vocaloid:
good
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zarkam21:
Vocaloid:
I need to go I have some work to take care of
zarkam21:
Sure no problem
Vocaloid:
equation for a parabola
x^2 = 4py
compare that with
x^2 = 12y
what does p equal?
zarkam21:
3
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zarkam21:
@Vocaloid
Vocaloid:
good, p = 3