sheelasawyers17 sheelasawyers17

09-02-2017
Mathematics

Answered

the graph of which function has an axis of symmetry at x = 3?

f(x) = x2 + 3x + 1

f(x) = x2 – 3x – 3

f(x) = x2 + 6x + 3

f(x) = x2 – 6x – 1

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Verified Answer :

Anonymous Anonymous

13-02-2017

you do this by converting to vertex form a(x - b)^2 + c where the axis of symmetry is x = b

the correct function to have a symmetry x = 3 will be the one which includes -6x
which is the last one

x^2 - 6x - 1 = (x - 3)^2 -9-1

the last option is the correct one

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