SOLUTION: /graphs of quadratic equations/ Please help me evaluate the discriminant b^2-4ac. Then use the answer to state how many real-number solutions exist for the equation. {{{y=x^2+8

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Question 211938This question is from textbook Intoductery Algebra
: /graphs of quadratic equations/
Please help me evaluate the discriminant b^2-4ac. Then use the answer to state how many real-number solutions exist for the equation.

Thank you.
This question is from textbook Intoductery Algebra

Answer by Earlsdon(6294)   (Show Source): You can put this solution on YOUR website!
The discriminant in this equation is:

When the discriminant is zero, the equation has a double root.
Factor.
so...
or a double root.

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