SOLUTION: Graph y=x^2-1 (label the vertex and the axis of symmetry) and tell whether the parabola opens upward or downward.

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: Graph y=x^2-1 (label the vertex and the axis of symmetry) and tell whether the parabola opens upward or downward.      Log On


   

Question 467442: Graph y=x^2-1 (label the vertex and the axis of symmetry) and tell whether the parabola opens upward or downward.
Answer by lwsshak3(11628) About Me  (Show Source):
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Graph y=x^2-1 (label the vertex and the axis of symmetry) and tell whether the parabola opens upward or downward.
...
y=x^2-1
This is a parabola that opens upwards with vertex at (0,-1).
Axis of symmetry: y-axis or x=0
See graph below as a visual check on answers
..
+graph%28+300%2C+300%2C+-10%2C+10%2C+-10%2C+10%2Cx%5E2-1%29+