Question

Find the axis of symmetry for this parabola:

y = -2x2 + 4x + 1
Write your answer as an equation.
Enter the correct answer.
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Answer 1

is x=1

Explanation:

we rewrite the equation in a vertex/completed square form

`y=-2x^(2)+4x+1= -2(x-1)^(2) +3`

therefore, the line of symmetry is

`x-1=0`

⇒
`x=1`

is the axis of symmetry