Exploring Horizontal and Vertical Lines

What is the orientation of horizontal lines?

• Circular

• Diagonal

• Up and down

• Side to side

Which axis are horizontal lines parallel to?

• X-axis

• Z-axis

• None

• Y-axis

What does the 'O' in POI BUCKS stand for?

• Undefined slope

• Zero slope

• One slope

• Negative slope

What type of equation do vertical lines have?

• X equals

• Y equals

• Z equals

• None

What is the equation of a horizontal line passing through the point (5, -7)?

• x = -7

• y = -7

• y = 5

• x = 5

What is the slope of a vertical line?

• Zero

• Undefined

• Positive

• Negative

If a line is parallel to the y-axis and passes through (3, 5), what is its equation?

• x = 3

• y = 5

• x = 5

• y = 3

What is the equation of a line perpendicular to the y-axis passing through (7, 15)?

• y = 7

• x = 15

• x = 7

• y = 15

What is the most important thing to remember when dealing with horizontal and vertical lines?

• The y-coordinate

• The x-coordinate

• The POI BUCKS mnemonic

• The slope

Which of the following is true about horizontal lines?

• They are not functions

• They have a zero slope

• They are parallel to the y-axis

• They have an undefined slope