serenaleir53526
serenaleir53526 serenaleir53526
  • 02-05-2018
  • Mathematics
contestada

A hyperbola centered at the origin has a vertex at (9, 0) and a focus at (−15, 0).
Which are the equations of the asymptotes?

Respuesta :

wizard123
wizard123 wizard123
  • 02-05-2018
Hyperbola equation opening horizontally:
[tex]\frac{x^2}{a^2} - \frac{y^2}{b^2} = 1[/tex]
Asymptotes:
[tex]y = \pm \frac{b}{a} x[/tex]

'a' is distance vertex is from center --> a = 9
'c' is distance focus is from center  --> c = 15
[tex]a^2 + b^2 = c^2 \\ \\ b^2 = 15^2 - 9^2 = 144 \\ \\ b = 12[/tex]

Asymptotes are:
[tex]y = \pm \frac{12}{9} x = \pm \frac{4}{3} x[/tex]
Answer Link
plsmith2004
plsmith2004 plsmith2004
  • 07-05-2020

Answer:

C

Step-by-step explanation:

Answer Link

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