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15-10-2016
Mathematics

contestada

What is the axis of symmetry for f(x) = 2x2 + 4x + 2? (1 point)

x = −3

x = −1

x = 1

x = 3

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apologiabiology apologiabiology

15-10-2016

for f(x)=ax^2+bx+c
the axis of symmetry is -b/2a

f(x)=2x^2+4x+2
a=2
b=4
-4/(2*2)=-4/4=-1

the axis of symmetry is x=-1

B

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