SOLUTION: find x-intercepts of the graph of the equation y=x^2-1

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: find x-intercepts of the graph of the equation y=x^2-1      Log On


   



Question 885062: find x-intercepts of the graph of the equation
y=x^2-1

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The x-intercepts are the same as the roots
You find them by setting +y++=+0+
+x%5E2+-+1+=+0+
+x%5E2+=+1+
+x+=+1+ and
+x+=+-1+
---------------
The s-intercepts are:
( 1,0 ) and ( -1,0 )
------------------
Here's the plot:
+graph%28+400%2C+400%2C+-5%2C+5%2C+-5%2C+5%2C+x%5E2+-+1+%29+