1. As x → 0^{+}, f_{1} (x) → ∞
This means that the curve appears to increase as values of x get
close to 0 from the righthand side and f_{1 }(x) approaches
the line x = 0 (or the vertical asymptote).
2.As x → ∞, f_{1 }(x) →  ∞
In other words, f_{1} (x) decreases
without bound as x increases .
3. If f_{1} (1)
= 0 and f_{2} (1) = 0
The curve intersects the xaxis at (1,0).
This point is called the xintercept.

1. As x → 0^{+}, f_{2 }(x) →  ∞
This means that as values of x approach 0, f_{2} (x) approaches x =
0 (the vertical asymptote).
2. As x → ∞, f_{2} (x)→ ∞
In other words, f_{2} (x) increases
without bound to the right of the curve.
3. If f_{1} (1) = 0 and f_{2} (1) = 0
The curve intersects the xaxis at (1,0). This point is
called the xintercept.
