第8章 8.10

(1)

$y = \frac{2}{x}$

漸近線は$x = 0, y = 0$

(2)

$y = \frac{2x}{x-1} = 2 + \frac{2}{x-1} \qquad (y-2) = \frac{2}{x-1}$

漸近線は$x = 1$、$y = 2$

(3)

$y = -\frac{3x+4}{x+2} = -\left(3 - \frac{2}{x+2}\right) \qquad (y+3) = \frac{2}{x+2}$

漸近線は$x = -2$、$y = -3$