Math Problem Statement

Graph the hyperbola: \(\frac{x^2}{9} - \frac{y^2}{4} = 1\).

Solution

To graph the hyperbola given by the equation:

x29y24=1,\frac{x^2}{9} - \frac{y^2}{4} = 1,

let’s break it into steps:

1. Recognize the form:

This is a horizontal hyperbola because the x2x^2 term is positive. The standard form for such a hyperbola is:

x2a2y2b2=1,\frac{x^2}{a^2} - \frac{y^2}{b^2} = 1,

where:

  • a2=9a^2 = 9, so a=3a = 3,
  • b2=4b^2 = 4, so b=2b = 2.

2. Plot the center:

The center of the hyperbola is at (0,0)(0, 0).

3. Plot the vertices:

For a horizontal hyperbola, the vertices lie along the xx-axis at a distance of a=3a = 3 from the center:

  • Vertices: (3,0)(3, 0) and (3,0)(-3, 0).

4. Find the slopes of the asymptotes:

The asymptotes for a horizontal hyperbola are given by: y=±bax.y = \pm \frac{b}{a} x.

Here: slope=±23.\text{slope} = \pm \frac{2}{3}.

5. Sketch the asymptotes:

Draw the lines passing through the origin with slopes 23\frac{2}{3} and 23-\frac{2}{3}.

6. Draw the hyperbola:

  • Sketch the hyperbola opening left and right, approaching the asymptotes but never touching them.
  • Ensure the hyperbola passes through the vertices (3,0)(3, 0) and (3,0)(-3, 0).

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Math Problem Analysis

Mathematical Concepts

Analytic Geometry
Hyperbolas
Conic Sections

Formulas

Standard form of a horizontal hyperbola: \(\frac{x^2}{a^2} - \frac{y^2}{b^2} = 1\)
Asymptote equations: \(y = \pm \frac{b}{a}x\)

Theorems

Properties of hyperbolas

Suitable Grade Level

Grades 10-12