Math Problem Statement

Endpoints of Conjugate axis (3,-2), (3,6), length of the transverse axis is 16 units

Solution

The given points (3, -2) and (3, 6) are the endpoints of the conjugate axis of a hyperbola. The conjugate axis is perpendicular to the transverse axis. We are also given that the length of the transverse axis is 16 units.

Step 1: Determine the center of the hyperbola

The center of the hyperbola lies at the midpoint of the conjugate axis.

The midpoint formula is: Midpoint=(x1+x22,y1+y22)\text{Midpoint} = \left( \frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2} \right)

For the given points (3, -2) and (3, 6): Midpoint=(3+32,2+62)=(3,2)\text{Midpoint} = \left( \frac{3 + 3}{2}, \frac{-2 + 6}{2} \right) = (3, 2)

Thus, the center of the hyperbola is at (3, 2).

Step 2: Use the transverse axis information

The length of the transverse axis is given as 16 units, meaning 2a=162a = 16. Hence, the value of aa is: a=162=8a = \frac{16}{2} = 8

The transverse axis runs along the x-axis (horizontal) because the conjugate axis is along the y-axis (vertical).

Step 3: Write the equation of the hyperbola

Since the transverse axis is horizontal, the equation of the hyperbola takes the form: (xh)2a2(yk)2b2=1\frac{(x - h)^2}{a^2} - \frac{(y - k)^2}{b^2} = 1 where (h,k)(h, k) is the center of the hyperbola, and aa is half the length of the transverse axis.

Thus, h=3h = 3, k=2k = 2, and a=8a = 8. Therefore, a2=64a^2 = 64.

Step 4: Determine bb

The distance between the endpoints of the conjugate axis is 8 units, as the difference in their y-coordinates is 6(2)=86 - (-2) = 8. Hence, the length of the conjugate axis is 8 units, so 2b=82b = 8, and: b=82=4b = \frac{8}{2} = 4

Thus, b2=16b^2 = 16.

Final Equation:

Substituting the values into the standard equation of the hyperbola: (x3)264(y2)216=1\frac{(x - 3)^2}{64} - \frac{(y - 2)^2}{16} = 1

This is the equation of the hyperbola.

Would you like further details or have any questions?

Here are five related questions:

  1. How do we identify the transverse and conjugate axes in a hyperbola?
  2. What are the differences between hyperbolas and ellipses in terms of axes?
  3. How can you derive the equation of a hyperbola if only given the foci?
  4. What role does the distance between the vertices play in hyperbola equations?
  5. How can the asymptotes of a hyperbola be determined from its equation?

Tip: When working with hyperbolas, the transverse axis is always along the direction of the hyperbola's opening, and the conjugate axis is perpendicular to it.

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Math Problem Analysis

Mathematical Concepts

Analytic Geometry
Hyperbolas
Conic Sections

Formulas

Midpoint formula: ( (x1 + x2)/2 , (y1 + y2)/2 )
Standard equation of hyperbola with horizontal transverse axis: ( (x - h)^2 / a^2 ) - ( (y - k)^2 / b^2 ) = 1
Length of transverse axis: 2a
Length of conjugate axis: 2b

Theorems

Properties of hyperbolas
Relation between transverse and conjugate axes in a hyperbola

Suitable Grade Level

Grades 10-12