# Math Help - Questions about graphs

Sketch the graph of the following functions:

a) f(x) = 12 - x - x^2

b) g(x) = (x - 3) / (x^2 - 1)

2. For (a) the graph is a parabola. So the function is $y = -x^2 - x +12$. The vertex is $-\frac{b}{2a} = -\frac{1}{2}$.

Here

The second one is below.