(Section 2.1: An Introduction to Limits) 2.1.2 NotationWe can write: limx±1fx()=3. Alternatively, we can write: ±3as x±1. A graph can demonstrate this.Consider the graph of y=; here, y=3x2+x±1. (Figure 2.1.a) Imagine that the arrows in the figure above represent two lovers running towards each other along the parabola. What is the y-coordinate of the point that they are approaching? It is 3.
This is the end of the preview.
access the rest of the document.