Question

In: Math

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. (If an...

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. (If an answer does not exist, enter DNE.)

x2 − 2.25y2 + 22.5y − 92.25 = 0

Solutions

Expert Solution

Find the center, vertices, foci, and the equations of the asymptotes of the hyperbola. (If an answer does not exist, enter DNE.)

x^2 − 2.25y^2 + 22.5y − 92.25 = 0

x^2 − 2.25y^2 + 22.5y = 92.25

x^2 − 2.25(y^2 -10y) = 92.25

x^2 − 2.25(y^2 -10y+25) = 92.25 - (2.25 x 25)

x^2 − 2.25(y-5)^2 = 92.25 - 56.25

x^2 − 2.25(y-5)^2 = 36

Divide each term by 36,

(x^2/36) − (2.25/36)(y-5)^2 = 36/36

(x^2/36) − (y-5)^2 /16 = 1

is equivalent to

For a hyperbola with standard form of equation

It is a horizontal parabola with the following characteristics mainly,

Center : (h,k)

Length of transverse axis : 2a

Length of conjugate axis : 2b

Vertices : (h+a,k) (h-a,k)

Co-vertices : (h,k+b) (h,k-b)

a^2 + b^2 = c^2

Foci : (h+c,k) (h-c,k)

Equations of asymptotes : (y-k) = ±(b/a) (x-h)

a : 6, b : 4, c : sqrt 52 or 2sqrt13, h : 0, k : 5

Center : (0,5)

Vertices : (-6,5) (6,5)

Foci : (-2sqrt13,5) (2sqrt13,5)

Equations of asymptotes : (y-5) = ±(4/6)(x)

(y-5) = ±(2/3)(x)

y = (2/3) x + 5

y = (-2/3) x + 5


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