Vertex of Quadratic Functions

The video tutorial explains how to find the vertices of two quadratic functions in standard form. It begins with an introduction to the vertex formula, H = B / 2a, and demonstrates how to find the x-coordinate (H) and y-coordinate (K) of the vertex. The tutorial provides a detailed walkthrough for the first function, y = x^2 - 4x + 3, and a quicker calculation for the second function. The vertices found are (2, -1) and (-2, 9) for the respective functions.

What is the formula used to find the x-coordinate of the vertex in a quadratic function?

• H = A / 2B

• H = 2A / B

• H = 2B / A

• H = B / 2A

In the function y = x^2 - 4x + 3, what is the value of 'a'?

• 0

• 1

• 3

• -4

For the function y = x^2 - 4x + 3, what is the x-coordinate of the vertex?

• 2

• 3

• -1

• 4

What is the y-coordinate of the vertex for the function y = x^2 - 4x + 3?

• 2

• 0

• -1

• 1

In the function y = x^2 + 4x - 5, what is the value of 'b'?

• 4

• -5

• 1

• 0

For the function y = x^2 + 4x - 5, what is the x-coordinate of the vertex?

• -2

• 2

• 0

• 4

What is the y-coordinate of the vertex for the function y = x^2 + 4x - 5?

• -9

• 5

• 9

• 0

Which of the following is the vertex of the function y = x^2 - 4x + 3?

• (-2, 9)

• (-2, -9)

• (2, -1)

• (2, 1)

Which of the following is the vertex of the function y = x^2 + 4x - 5?

• (2, 1)

• (-2, -9)

• (-2, 9)

• (2, -1)

What are the vertices of the two quadratic functions discussed?

• (2, 1) and (-2, -9)

• (2, -1) and (-2, 9)

• (2, 1) and (-2, 9)

• (2, -1) and (-2, -9)