Graphical Behavior

Finding y-intercepts

Example 2

Find the y-intercept of the function.

frac1

Step 1. Simplify the function completely.

frac1

frac2

frac3

frac4

When x = 0, the denominator is 1, therefore the function is defined.

Step 2. Substitute x = 0 into your simplified equation and solve.

frac5

frac6

frac7

y-intercept: (0, 3)