Friday
April 18, 2014

Homework Help: Algebra

Posted by John on Thursday, April 3, 2008 at 5:40pm.

min/max point
minimum or maximum
f(x)=2x^2+8x-2

a=2
x=(-b)/(2a)=(-8)/(2)(2)=-4
x=-4
y=2(-4)^2+8(-4)-2
2(16)-32-2
32-32-2
y=-2
(-4,-2)
axis of symmetry is x=-4
range[-2,oo]
minimum value -2

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