SOLUTION: Calculate the value of the discriminant of x^(2 )+2x+1=0 By examining the sign of the discriminant in part a, how many x-intercepts would the graph of have? Why?

Question 189113: Calculate the value of the discriminant of x^(2 )+2x+1=0

By examining the sign of the discriminant in part a, how many x-intercepts would the graph of have? Why?

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

From we can see that , , and

Start with the discriminant formula.

Plug in , , and

Square to get

Multiply to get

Subtract from to get

Since the discriminant is equal to zero, this means that there is one real root.

This also means that there is only one x-intercept (since a root is an x-intercept)
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