Question

Explain the steps necessary to convert a quadratic function in standard form to vertex form.

plz I need help!!!!!!!!!

Answer 1

To convert a quadratic from y = ax2 + bx + c form to vertex form, y = a(x - h)2+ k, you use the process of completing the square. Let's see an example. Convert y = 2x2 - 4x + 5 into vertex form, and state the vertex. I had this question and got it right. Have a great day

Explanation:

Answer 2

Answer :

Vertex form

a { ( x + b/2a )^2 - ( b/2a)^2 } + c


We are given than a quadratic function in standard form

ax^2 + bx + c


We have to explain steps which is necessary for converting quadratic x function in standard form to vertex form
We are explaining steps for converting a quadratic function into vertex form with the help of example

Suppose we have a quadratic function

2x^2 + x - 1

Taking 2 common from the given function the we get

2( x^2 + x/2 ) - 1

Now, we convert the equation of the form

2{ (x)^2 + 2 x x x1/4 + 1/16 - 1/16 } - 1
2{ ( x + 1/4)^2 - 1/16 } - 1
2{ ( x + 1/4 )^2 - (1/4)^2 } - 1

Vertex form = 2{ ( x + 1/4 )^2 - (1/4)^2 } - 1

Hence , the vertex form =

a { ( x + b/2a )^2 - ( b/2a )^2 } + c