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Mathematics 15 Online
zarkam21:

?

zarkam21:

1 attachment
Vocaloid:

vertices are on the y-axis so I'm thinking it's oriented along the y-axis for part I) [not entirely sure but it will become clear as we finish the calculations]

Vocaloid:

center is the midpoint of the vertices

zarkam21:

so maybe i should just leave part i blank for now until we finish

Vocaloid:

sure for II) center is midpoint of the vertices

zarkam21:

(0,0)

Vocaloid:

awesome for part III) we use the right column (since our hyperbola is y-oriented) |dw:1519172868356:dw|

Vocaloid:

our asymptotes have slope 3/4 and -3/4 so a = 3 and b = 4

Vocaloid:

now for part IV) just need to plug in a and b into the hyperbola equation on the right hand column, given that our h and k values are 0 and 0 (since it's centered at origin)

zarkam21:

|dw:1519172974525:dw|

zarkam21:

THIS ONE?

Vocaloid:

yes

zarkam21:

\[\frac{ (y-0)^2 }{ 3^2 }-\frac{ (x-0)^2 }{ 4^2}=1\]

Vocaloid:

good, just make sure to write things in simplest terms (so don't leave those 0's there, and simplify those exponents

zarkam21:

1 attachment
zarkam21:

would this be the simplest form

Vocaloid:

don't leave those 0's there (x-0 and y-0 are just x and y

zarkam21:

so the equation as it isz but the numerator is just x and y

Vocaloid:

x^2 and y^2

zarkam21:

okay so how it is x^2 and y^2

zarkam21:

how it is with just x^2 and y^2

Vocaloid:

|dw:1519173365823:dw|

Vocaloid:

|dw:1519173370878:dw|

Vocaloid:

the square exponents don't just disappear

zarkam21:

1 attachment
Vocaloid:

good

Vocaloid:

for part I I'm not sure how they want you to phrase it, you could say it "opens up and down along the y-axis" something like that

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