Qusetion: Make the given changes in the indicated examples of this section and then plot the graphs.
In Example, change the + sign to -.
Example: Be careful: imaginary values
Graph the function y = √(x + 1). When finding the points for the graph, we may not let x take on any value less than -1, for all such values would lead to imaginary values for and are not in the domain. Also, because we have the positive square root indicated, the range consists of all values y of that are positive or zero (y ≥ 0). See Fig. Note that the graph starts at (-1, 0).
