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# Final Exam

### Words needed for Semester 2 Exam

TermDefinition
Equation An equation is two mathematical expressions set equal to each other.
Coefficient A coefficient is the positive or negative number multiplied to a variable in an expression.
Variable A variable is a letter used to represent one or more numbers.
Variable Expression A variable expression is numbers and letters put together using operations that represents something.
Proportion A proportion is two ratios set equal to each other.
Similar Polygons Two or more polygons are similar if their corresponding angles are congruent and their corresponding sides are proportional.
Created by: esisolak