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# Families of Lines

## Lines sharing a point or slope

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Equations of Parallel and Perpendicular Lines

Find the equation of a line that is parallel or perpendicular to a given line.
MEMORY METER
This indicates how strong in your memory this concept is
0

## Writing Equations of Parallel and Perpendicular Lines

by EPISD Algebra 1 Team //at grade
Find the equation of a line that is parallel or perpendicular to a given line.
MEMORY METER
This indicates how strong in your memory this concept is
6
• Real World Application