Answer
$a)x=-1$
$b)none$
Work Step by Step
The x-intercept is the point at which the graph of the function crosses the x-axis, so we can use this information to find the answer to the first question.
The y-intercept is the point at which the graph of the function crosses the y-axis, and we can use this to determine the answer to the second question. However, the graph does not cross the y-axis at all in this problem.