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May 5, 2015

Homework Help: algebra-Am I right so far

Posted by dani on Sunday, May 2, 2010 at 10:23pm.

Use the quadratic formula to determine the x-intercepts (if any)f(x)=2x^2=2
am I right so far?
f(x)ax^2+bx+c
y=ax^2+bx+c
y=2x^2+2
y=0=>2x^2+2=0
=>2x^2+2=0
ax^2=2,bx=2,c=0
x=b=sqrtb^2+4ac over 2a
x=(2)+sqrt(2)^24(2)(0)over2(2)
x=sqrt4+4over 2

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