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 :

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

Write an equation that involves multiplication, contains a variable, and has a solution of 5. Then write another equation that has the same solution and include

More people became Buddhists after a. India became part of the Persian Empire. b. the Mauryans traded with Buddhist countries. c. Chandra Gupta’s conversion. d.

What was the significance of the Lend-Lease Act? -It represented an American violation of existing diplomatic agreements. Americans violated the Munich Pact. -I

Piggy says now we've really got a beast who is she talking about

After the colonists won independence from Britain, what was their main concern?.

The first invasions of Rome from the east were from a. the Persians c. the Turks b. the Chinese d. the Spanish

Points B and C lie on line AD. Find AC if AB/BD =3/4, AC/CD=5/6,and BD =66

The 'divide and rule' policy employed by the English was developed by the _____.

To expand his empire, Tang Taizong primarily relied on his military skills. used his trade relationships. chose loyal friends as officials. won over the peasant

Which was the "great compromise" that helped the Anti-federalists to finally approve the Constitution? A. the Bill of Rights B. The Federalist Papers C. an amen