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

what is 12minus 2 multiply 6 plus 2 divide by 2
A tree casts a shadow 27 m long. At the same time, the shadow cast by a 66-cm tall statue is 56 cm long. Find the height of the tree to the nearest tenth of a
A tree casts a shadow 27 m long. At the same time, the shadow cast by a 66-cm tall statue is 56 cm long. Find the height of the tree to the nearest tenth of a
name a metal that doesn't conduct electricity
explain why the motion of a body which is moving with constant speed in a circular path is said to be accelerated ?
What's the other word stubborn; inflexible
What is the highest mountain on each continent?
what is 12minus 2 multiply 6 plus 2 divide by 2
write in decimal form fourteen and eighty-Four hundredths
What's the other term for: explosive or changing very quickly