Question 885062
The x-intercepts are the same as the roots
You find them by setting {{{ y  = 0 }}}
{{{ x^2 - 1 = 0 }}}
{{{ x^2 = 1 }}}
{{{ x = 1 }}} and
{{{ x = -1 }}}
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The s-intercepts are:
( 1,0 ) and ( -1,0 ) 
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Here's the plot:
{{{ graph( 400, 400, -5, 5, -5, 5, x^2 - 1 ) }}}