The problem asks us to find the vertical asymptote of the function $f(x) = \frac{2x}{x+3}$, and to determine the sign of infinity that $f(x)$ approaches as $x$ approaches the asymptote from the right.
2025/4/23
1. Problem Description
The problem asks us to find the vertical asymptote of the function , and to determine the sign of infinity that approaches as approaches the asymptote from the right.
2. Solution Steps
First, we find the vertical asymptote. Vertical asymptotes occur where the denominator of a rational function is equal to zero.
So the vertical asymptote is .
Next, we need to determine the sign of infinity as approaches from the right (i.e., ). We can choose a value slightly greater than , for example .
.
We can also consider the limit as approaches from the right:
.
As approaches from the right, is slightly larger than , so approaches from the positive side (i.e., ).
approaches .
Therefore, .
3. Final Answer
The equation of the vertical asymptote is . As approaches the asymptote from the right, the function approaches negative infinity.