Equations of Lines

Front

What is the slope-intercept form of a line?

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

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

Back

Tags

CCSS.8.EE.B.5

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.

Tags

CCSS.8.EE.B.5

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Tags

CCSS.8.EE.B.6

Front

What is the equation of a vertical line?

Back

Front

What is the equation of a horizontal line?

Back

Front

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

Back

Convert both equations to slope-intercept form and compare their slopes.

Tags

CCSS.8.EE.B.6

Front

Back

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

Back

Tags

CCSS.8.EE.B.5

Front

What does the point (0, b) represent in the context of a line?

Back

The point (0, b) represents the y-intercept of the line.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3