SOLUTION: Calculate the value of the discriminant of x^2+4x+4=0 ,By examining the sign of the discriminant in part a, how many x-intercepts would the graph of y=x^2+4x=4 have? Why?

SOLUTION: Calculate the value of the discriminant of x^2+4x+4=0 ,By examining the sign of the discriminant in part a, how many x-intercepts would the graph of y=x^2+4x=4 have? Why?

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Question 157235: Calculate the value of the discriminant of x^2+4x+4=0 ,By examining the sign of the discriminant in part a, how many x-intercepts would the graph of y=x^2+4x=4 have? Why?
Answer by nabla(475) (Show Source): You can put this solution on YOUR website!
Discriminant is:
for ax^2+bx+c=0

So,
=0
This means there will be one zero (x intercept). This is because the +/- has to relevance with a zero root.
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