Graphing Horizontal and Vertical Lines

This video tutorial explains how to graph horizontal and vertical lines. It begins with an introduction to the concepts, followed by a detailed example of graphing a horizontal line using the equation y = 2. The tutorial demonstrates how to use a table of values to plot points and draw the line. It then covers graphing a vertical line with the equation x = -3, showing how to plot points and understand the characteristics of vertical lines. The video emphasizes the forms of linear equations for horizontal and vertical lines and their respective intercepts.

What is the main focus of the lesson introduced at the beginning?

• Graphing quadratic equations

• Graphing horizontal and vertical lines

• Graphing circles

• Graphing parabolas

When graphing the equation y = 2, what is true about the y-values?

• They are always 2

• They depend on the slope

• They vary with x

• They are always 0

Which of the following points lies on the line y = 2?

• (1, 1)

• (-2, 0)

• (0, 2)

• (3, 3)

What is the vertical intercept of a horizontal line y = B?

• Undefined

• 0

• Depends on x

• B

What is the equation of a horizontal line that crosses the vertical axis at 5?

• x = 5

• y = 5

• x = y + 5

• y = x + 5

In the equation x = -3, what can be said about the x-values?

• They are always 0

• They depend on the slope

• They are always -3

• They vary with y

Which of the following points lies on the line x = -3?

• (-3, 2)

• (0, -3)

• (3, -3)

• (-2, 0)

What is the horizontal intercept of a vertical line x = K?

• K

• Depends on y

• 0

• Undefined

What is the equation of a vertical line that crosses the horizontal axis at -4?

• y = x - 4

• y = -4

• x = y - 4

• x = -4

What is true about the y-values in the equation x = -3?

• They are always 3

• They depend on x

• They can be any real number

• They are always 0