(a) Note: *y* is not defined for values of *x* less
than `-1`. (Try some in your calculator, like `x = −4`.)

(b) We determine the some *x*-values and the corresponding *y*-values and write them in a table:

x |
-1 | 0 | 1 | 2 | 3 | 4 | 5 |

y |
0 | 1 | 1.4 | 1.7 | 2 | 2.2 | 2.4 |

(c) We draw our graph as follows.

Graph of `y=sqrt(x+1)`. It's a half-parabola.