## Precalculus (6th Edition) Blitzer

At $y=2$ the graph of ${{Y}_{2}}$ intersects the $y$ -axis.
The table shows different values x for different values of y. Now, check the values of x and y in the given table. The point at which the graph will intersect the y axis will have the value of x as 0. So, $x=0$ at $y=2$. Therefore, it passes the $y$ -axis at $y=2$.