Equations of Lines Day Four

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Back

The slope (m) represents the rate of change of y with respect to x.

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 but different y-intercepts.

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CCSS.8.EE.B.6

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1 (i.e., they are opposite reciprocals).

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CCSS.8.EE.B.6

Front

What are coinciding lines?

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Coinciding lines are lines that lie on top of each other, having the same slope and the same y-intercept.

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CCSS.8.EE.C.8A

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Back

The lines are perpendicular.

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CCSS.8.EE.B.6

Front

Back

The slopes are opposite reciprocals.

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CCSS.8.EE.B.6

Front

Back

The lines have the same slope but different y-intercepts.

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CCSS.8.EE.C.8B

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Back

The y-intercept (b) is the point where the line crosses the y-axis.

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CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

How can you determine if two lines are intersecting?

Back

Two lines are intersecting if they have different slopes.

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CCSS.8.EE.C.8B

Front

What is the significance of the slope in a linear equation?

Back

The slope indicates the steepness and direction of the line.

Tags

CCSS.8.EE.B.5