8
QuizMultiple Choice

Conic Sections — Test

Question 8 • Geometry

What are the vertices of the hyperbola whose equation is the fraction with numerator open paren x plus 7 close paren squared and denominator 25 minus the fraction with numerator open paren y minus 8 close paren squared and denominator 36 is equal to 1 ?

Answer
A
open paren negative 12 comma 8 close paren and open paren negative 2 comma 8 close paren
B
open paren negative 13 comma 8 close paren and open paren negative 1 comma 8 close paren
C
open paren negative 7 comma 2 close paren and open paren negative 7 comma 14 close paren
D
open paren negative 7 comma 3 close paren and open paren negative 7 comma 13 close paren

Explanation

The equation is in the standard form of a horizontal hyperbola: (x + 7)²/25 − (y − 8)²/36 = 1. Its center is (−7, 8), and the horizontal distance from the center to each vertex is √25 = 5. Moving 5 units left and right gives the vertices (−12, 8) and (−2, 8), which matches choice A.

AI-written and checked against the verified answer.

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