A set of two or more equations.

An ordered pair makes both equations true. The lines intersect at only one location.

No orderd pair make both equations true. The lines are parallel to each other.

Infinitely Many Solutions

All ordered pairs on the line make both equations true. The graph is one line.

Replacing one variable with an equivalent expression.

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8th Math 3rd 9 Weeks

Algebra and Data Analysis

Term	Definition
Systems of Equations	A set of two or more equations.
One Solution	An ordered pair makes both equations true. The lines intersect at only one location.
No Solution	No orderd pair make both equations true. The lines are parallel to each other.
Infinitely Many Solutions	All ordered pairs on the line make both equations true. The graph is one line.
Substitution Method	Replacing one variable with an equivalent expression.