Write the equation of a line parallel to another through a given point

The video tutorial explains how to determine the equation of a line parallel to a given line, specifically focusing on horizontal lines. It begins by discussing the concept of parallel lines and slope intercept form, then moves on to explain horizontal lines and their zero slope. The tutorial provides an algebraic explanation and demonstrates how to find the equation of a horizontal line that passes through a specific point, concluding with a summary of the process.

What is the slope of the line represented by the equation y = 2?

• 2

• 1

• 0

• Undefined

If a line is horizontal, what can be said about its slope?

• It is positive

• It is negative

• It is undefined

• It is zero

Which of the following points does the line y = -7 pass through?

• (3, 3)

• (5, 0)

• (0, 2)

• (8, -7)

What is the equation of a horizontal line that passes through the point (8, -7)?

• x = 8

• y = 8

• y = -7

• x = -7

Why must the line passing through (8, -7) be horizontal?

• Because it passes through the origin

• Because it is parallel to a vertical line

• Because it is parallel to another horizontal line

• Because it has a positive slope