SOLUTION: I need help finding the y-incept and the vertex for this quadratic function f(x)=2x^2-x-1

Question 1089749: I need help finding the y-incept and the vertex for this quadratic function
f(x)=2x^2-x-1
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
.

1.  To find y-intercept, simply substitute x= 0 to the formula. Then calculate.


2.  About the vertex form,  see the lessons

        - HOW TO complete the square to find the minimum/maximum of a quadratic function

        - Briefly on finding the minimum/maximum of a quadratic function

        - HOW TO complete the square to find the vertex of a parabola

        - Briefly on finding the vertex of a parabola

    in this site.

Good luck and happy learning !

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