SOLUTION: Why does a quadratic equation have two answers?
Algebra.Com
Question 936660: Why does a quadratic equation have two answers?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Why does a quadratic equation have two answers?
y = ax^2 + bx + c
Actually, it doesn't always...
only if > 0 does it have two 'real' answers... (Blue)
= 0 , one answer. Ex: y = x^2 (Green)
= 0, Imaginary roots only, does not cross x-axis (Purple)
...
x^2(green),(x-1)^2 -1(Blue), (x-1)^2 +3 (Purple)
graphically a quadratic equation is a Parabola:
generally, it will cross the x-axis twice...but not always...
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