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mhphall prealgebra

Chapter 1 Vocabulary

What is a variable? A variable is a letter that stands for a number.
What is a variable expression? A variable expression is a mathematical phrase that uses variables, numerals, and operation symbols.
What is the Order of Operations? 1. Work inside grouping symbols. 2. Simplify any terms with exponents. 3. Multiply and divide in order from left to right. 4. Add and Subtract in order from left to right.
What is to evaluate a variable expression? To evaluate a variable expression, you first replace each variable with a number, then use the order of operations to simplify.
What are opposites? Numbers that are the same distance from zero on a number line but opposite directions.
What are integers? Integers are whole numbers and their opposites.
What is absolute value? Absolute value is a number's distance from zero on the number line.
What is inductive reasoning? Inductive reasoning is making conclusions based on patterns you observe.
What is a conjecture? A conjecture is a conclusion reached by inductive reasoning.
What is a coordinate plane? A coordinate plane is formed by the intersection of two number lines.
What is the x-axis? The x-axis is the horizontal number line on a coordinate plane.
What is the y-axis? The y-axis is the vertical number line on a coordinate plane.
What is an ordered pair? The ordered pair gives the coordinates and the location of a point.
What is the origin? The origin is where the axes intersect (0).
Created by: magcota