**(2 Variables 2 Equations)**

Two algebraic equations or inequalities containing two variables in the first degree

Glossary:

Intersection: The coordinate where two lines meet and share the same solution

Parallel: Lines that have the same slope but different y-intercepts

Perpendicular: Lines that have opposite reciprocal slopes

Right angle: An angle that measures 90 degrees (revisited in Triangles module)

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