SOLUTION: Name the vertex and axis of symmetry for each quadratic function. Tell wherther the parabola opens up, down, left, or right. f(x)=x^2-1

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Name the vertex and axis of symmetry for each quadratic function. Tell wherther the parabola opens up, down, left, or right. f(x)=x^2-1      Log On


   

Question 194511: Name the vertex and axis of symmetry for each quadratic function. Tell wherther the parabola opens up, down, left, or right.
f(x)=x^2-1
Answer by Mathtut(3670) About Me  (Show Source):
You can put this solution on YOUR website!
vertex is a (0,-1)..... this take the form of y=x^2 meaning it opens up or down.... the parabola opens up because the coefficient of the x%5E2 term is positive.
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axis of symmetry ix x=0
:
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2Cx%5E2-1%29