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Mathematics 24 Online
zarkam21:

True?

zarkam21:

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zarkam21:

@Vocaloid

Vocaloid:

yeah that's true

zarkam21:

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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:

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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:

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zarkam21:

true?

Vocaloid:

good true

zarkam21:

(0,0)

zarkam21:

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Vocaloid:

good

zarkam21:

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Vocaloid:

yup gud

zarkam21:

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zarkam21:

(2,0)

zarkam21:

still there?

Vocaloid:

|dw:1517607819251:dw|

Vocaloid:

use the last one to determine what p is equal to

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

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

Vocaloid:

yes

zarkam21:

B?

zarkam21:

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Vocaloid:

that's the same question as before

zarkam21:

lol sorry

zarkam21:

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Vocaloid:

yeah b

zarkam21:

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zarkam21:

false

Vocaloid:

good

zarkam21:

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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

zarkam21:

@Vocaloid

Vocaloid:

good, p = 3

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