Enter the $x$-intercept(s) and $y$-intercept(s) of $y = {x^{2}-1}$. Enter a point as $(a,b)$, including the parentheses. If there is more than one correct answer, enter a comma separated list of points.

• $x$-intercept(s): help (points)
• $y$-intercept(s): help (points)