debbleg2 debbleg2
  • 02-06-2017
  • Mathematics
contestada

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 :

Zane18
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
Answer Link

Otras preguntas

1 in 4 daily calories should come from fat. Please select the best answer from the choices provided. T F
QUESTION IS ATTACHED PLEASE HELP!
what influence did Hollywood, the Harlem Renaissance, the Fundamentalist movement, and prohibition have in changing American society in the 1920's
What american landmark stands on liberty island?
factor 4x^2-8x+3 by applying the distributive property to the last step shown on the left
How have industries used cogeneration and recycling to improve their energy efficiency?
By 1905, there was a total of about miles of paved roads in America.
Explain how earthquakes form at transform plate boundaries
What are two possible paths of a spacecraft that just launched from Earth but that is not traveling at orbital velocity?
What is scientific notation?