How do you graph y = 1/(x+2) - 1?

1 Answer
Jun 6, 2015

This is a hyperbolic function with asymptotes y = -1 and x = -2

When x = -2+epsilon for small epsilon > 0, y is large and positive.

When x = -2-epsilon for small epsilon > 0, y is large and negative.

As x->-oo we have y->-1_-

As x->oo we have y->-1_+

The line of slope 1 through the intersection (-2, -1) of the asymptotes cuts the hyperbola at its two vertices (-1, 0) and (-3, -2)

graph{1/(x+2)-1 [-12.08, 7.92, -5.68, 4.32]}