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

What is the measure of an interior angle in a regular triangle? Write your answer as an integer or as a decimal rounded to the nearest tenth.

HELP ASAP QUICK QUESTION : I just need to know, when you work out the length of the missing side do you put cm for the units or not???

Is the relationship between velocity and centripetal force a direct, linear or nonlinear square relationship?

write two examples and two characteristics of monocot and dicot plant

What is 272,062 rounded to the nearest hundred?

1) Which equations represent functions that are non-linear? Select each correct answer. a) Y = X b) 2Y= 4x+6 c ) Y = 8 + x d) Y - 6 = x^2 e)

What do disaccharides, such as sucrose, andpolysaccharides, such as starch, have in common?A They are lipids made of fatty acids.B They are proteins made of ami

Bill wants to post three parcels.Parcel 1Parcal 2Parcel 3Each parcel costs £1.10 to post.How much change should he get from a £10 note?

Use the graph to find estimates for the solutions of [tex]3x {}^{2} - 3x - 1 = x + 1[/tex]

If a spring stretches 6 meters when a 7-kilogram weight is attached to it, how much will it stretch when a 42-kilogram weight is attached to it?