Graphing Horizontal and Vertical Lines

The video tutorial explains how to graph horizontal and vertical lines, focusing on equations of the form y = c and x = a, where c and a are constants. It demonstrates graphing y = -2 as a horizontal line and x = 3 as a vertical line, discussing their properties as functions. Horizontal lines pass the vertical line test and are functions, while vertical lines do not. The tutorial also provides instructions for using a graphing calculator to plot these lines, highlighting the differences in graphing horizontal and vertical lines on the device.

What is the goal of graphing lines in the form of y = c and x = a?

• To graph lines with constant y or x values

• To solve quadratic equations

• To determine the slope

• To find the intersection points

What does the graph of y = -2 consist of?

• All ordered pairs with x coordinate 2

• All ordered pairs with y coordinate -2

• All ordered pairs with x coordinate -2

• All ordered pairs with y coordinate 2

What is the purpose of using a T-table when graphing y = -2?

• To solve for y

• To determine the x-intercept

• To verify the graph

• To find the slope

What type of line is formed by the equation y = -2?

• Curved line

• Vertical line

• Horizontal line

• Diagonal line

Does a horizontal line pass the vertical line test?

• Yes, it does

• No, it does not

• Only sometimes

• It depends on the slope

What does the graph of x = 3 consist of?

• All ordered pairs with y coordinate -3

• All ordered pairs with x coordinate -3

• All ordered pairs with y coordinate 3

• All ordered pairs with x coordinate 3

What is the condition for the T-table when graphing x = 3?

• x must be any value

• y must be any value

• y must be 3

• x must be 3

What type of line is formed by the equation x = 3?

• Horizontal line

• Diagonal line

• Curved line

• Vertical line

Does a vertical line pass the vertical line test?

• Only sometimes

• No, it does not

• It depends on the slope

• Yes, it does

How do you graph a vertical line on a graphing calculator?

• Use the ZOOM function

• Use the TRACE function

• Use the DRAW menu and select option 4

• Use the Y= menu