Homework Flashcard 11/19/24 (A)

Front

What is the slope-intercept form of a linear equation?

Back

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1, meaning they intersect at a right angle.

Front

What is the y-intercept of a line?

Back

Front

How do you determine if two lines are parallel or perpendicular from their equations?

Back

Compare the slopes: If slopes are equal, lines are parallel. If slopes are negative reciprocals, lines are perpendicular.

Front

Back

Front

Back

Front

If a line has a slope of 0, what can be said about the line?

Back

A line with a slope of 0 is horizontal and does not rise or fall.

Front

If a line has an undefined slope, what can be said about the line?

Back

A line with an undefined slope is vertical and goes straight up and down.