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Tyler B

Page history last edited by PBworks 4 years, 2 months ago

Name: Tyler

 

Question: What can you tell about the graph of a quadratic function based on the roots you get from solving the quadratic formula for that equation?

 

Answer: By using the quadratic formula you can determine the x-intercepts on a graph for a quadratic function. The quadratic formula is:

 

 

Formula

 

Anotother way to find how many x-intercepts in a graph is by using the discriminant. The equation for the discriminant is:

 

Formula

 

If  Formulathere are two different roots and two different x-intercepts.

 

If Formula there are two complex roots and 0 x-intercepts.

 

If Formula there are two equal roots and 1 x-intercept.

 

 

 

Formula

 

 

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