Math Problem Statement

Determine the correct graph for the hyperbola equation: (x - 6)^2 / 9 - (y + 8)^2 / 4 = 1

Solution

The given equation is:

(x6)29(y+8)24=1\frac{(x - 6)^2}{9} - \frac{(y + 8)^2}{4} = 1

This is the equation of a hyperbola in standard form, specifically in the form:

(xh)2a2(yk)2b2=1\frac{(x - h)^2}{a^2} - \frac{(y - k)^2}{b^2} = 1

Breakdown:

  • Center: The center of the hyperbola is (h,k)(h, k). From the equation, we can identify that h=6h = 6 and k=8k = -8, meaning the center is at (6,8)(6, -8).
  • Orientation: Since the xx-term comes first and the equation is in the form (xh)2a2(yk)2b2=1\frac{(x - h)^2}{a^2} - \frac{(y - k)^2}{b^2} = 1, the hyperbola opens left and right.
  • Values of aa and bb:
    • a2=9a^2 = 9, so a=3a = 3
    • b2=4b^2 = 4, so b=2b = 2

This means the hyperbola has a horizontal transverse axis (along the x-axis) and a vertical conjugate axis (along the y-axis).

Correct Answer:

  • The center is (6,8)(6, -8), a=3a = 3, and b=2b = 2.

Thus, the correct graph is the one with the choice: C(6, -8); a = 3; b = 2, which is the bottom-right option.


Would you like more details on hyperbolas or have further questions?

Here are five related questions for deeper understanding:

  1. What is the general form of a hyperbola?
  2. How do you distinguish between a hyperbola with horizontal vs. vertical axes?
  3. What are the asymptotes of a hyperbola, and how are they calculated?
  4. How can the foci of a hyperbola be determined from its equation?
  5. What is the relationship between the values of aa, bb, and the hyperbola's eccentricity?

Tip: Always identify the center of a conic section first, as it helps in sketching the graph accurately!

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Math Problem Analysis

Mathematical Concepts

Analytic Geometry
Hyperbolas
Conic Sections

Formulas

Standard form of a hyperbola: (x - h)^2 / a^2 - (y - k)^2 / b^2 = 1

Theorems

Conic Sections Properties
Hyperbola Characteristics

Suitable Grade Level

Grades 9-12