How do you find the discriminant for y=x^2-6x+9?

1 Answer
Jim G.
Mar 5, 2018

Delta=0

Explanation:

"for a quadratic in standard form"

•color(white)(x)y=ax^2+bx+c color(white)(x)a!=0

"the "color(blue)"discriminant" is.

•color(white)(x)Delta=b^2-4ac

y=x^2-6x+9larrcolor(blue)"is in standard form"

"with "a=1,b=-6" and "c=9

rArrDelta=(-6)^2-(4xx1xx9)=36-36=0

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