1. **State the problem:**
We are given the hyperbola equation $$\frac{(x-3)^2}{36} - \frac{(y+2)^2}{9} = 1$$ and need to verify its properties and help graph it.
2. **Identify the center:**
The center is at $$C = (3, -2)$$ from the terms $$x-3$$ and $$y+2$$.
3. **Determine $a$ and $b$:**
From the denominators, $$a^2 = 36 \Rightarrow a = 6$$ and $$b^2 = 9 \Rightarrow b = 3$$.
4. **Vertices:**
Vertices lie along the transverse axis (horizontal here) at $$x = 3 \pm 6$$, so vertices are $$ (9, -2) $$ and $$ (-3, -2) $$.
5. **Foci:**
Calculate $$c$$ using $$c^2 = a^2 + b^2 = 36 + 9 = 45$$, so $$c = 3\sqrt{5}$$.
Foci are at $$ (3 \pm 3\sqrt{5}, -2) $$.
6. **Eccentricity:**
$$e = \frac{c}{a} = \frac{3\sqrt{5}}{6} = \frac{\sqrt{5}}{2}$$.
7. **Asymptotes:**
Equations are $$y + 2 = \pm \frac{b}{a} (x - 3) = \pm \frac{3}{6} (x - 3) = \pm \frac{1}{2} (x - 3)$$.
8. **Axes lengths:**
Transverse axis length $$= 2a = 12$$.
Conjugate axis length $$= 2b = 6$$.
9. **Graphing tips:**
- Plot center at (3, -2).
- Mark vertices at (9, -2) and (-3, -2).
- Draw rectangle centered at (3, -2) with width 12 and height 6 to guide asymptotes.
- Draw asymptotes through corners of this rectangle.
- Plot foci at (3 ± 3√5, -2).
- Sketch hyperbola branches opening left and right along the transverse axis.
This confirms your calculations and provides a clear guide to graph the hyperbola.
Hyperbola Properties Dbe819
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