Find the line of symmetry for the parabola whose equation is y = 2 x2 - 4 x + 1.

a. x=-1
b. x=1
c. x=2

Question

02-06-2017
Mathematics

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Find the line of symmetry for the parabola whose equation is y = 2 x2 - 4 x + 1.

a. x=-1
b. x=1
c. x=2

Respuesta :

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Zane18 Zane18 · Answer 1 · 2017-06-02T17:25:14+02:00

Zane18 Zane18

02-06-2017

Move all terms to one side:
y - 2x^2 + 4x -1 = 0
Use the Quadratic Formula:
x = -4 + 2√2(y + 1)/-4, -4 - 2√2(y + 1)/-4
Simplify solutions:
x = 1 - √2(y + 1)/2, 1 + √2(y + 1)/2

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Find the line of symmetry for the parabola whose equation is y = 2 x2 - 4 x + 1. a. x=-1 b. x=1 c. x=2

Respuesta :

Otras preguntas

Find the line of symmetry for the parabola whose equation is y = 2 x2 - 4 x + 1.

a. x=-1
b. x=1
c. x=2