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

-3=8x-4y. the equation is Y=
43 Which element reacts spontaneously with 1.0M HCl (aq) at room temperature? (1) copper (3) silver(2) gold (4) zinc
describe wind farms. Why are they useful?
The acidity or alkalinity of an unknown aqueous solution is indicated by its (1) pH value (2) electronegativity value (3) percent by mass concentration (4) perc
Latin American society was changed by a wave of immigrants from a. Europe. c. United States. b. Canada. d. Cuba.
One of the keys to running a lucrative catering business is to A. charge a lot of money. B. charge for overtime work. C. transport foods to a site. D. keep
What is the volume of 0.30 M NaOH(aq) needed to completely neutralize 15.0 milliliters of 0.80 M HCl(aq)? (1) 3.6 mL (3) 20. mL (2) 5.6 mL (4) 40. mL
At the local aquarium there are 10 dolphins 8 penguins and 4 whales what is the ratio of penguins to whales
Ozone is made of oxygen. What is the formula of ozone if 36g occupies 16.8L at STP?
Choose all that apply. History is the interaction between _____. people companies environment civilizations ideas