Chapter 1 Flashcards Preview

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Flashcards in Chapter 1 Deck (16)
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2

A number's distance from zero on a number line.

absolute value

3

A mathematical sentence containing one or more variables.

Open sentence

4

The graph of a compound inequality containing "or".

union

5

The graph of a compound inequality containing "and".

Intersection

6

Any number , m/n, where m & n are integers. The decimal form is either a terminating or repeating decimal.

rational number

7

A replacement for the variable in an open sentence that results in a true sentence.

solution

8

All numbers used in everyday life; the set of all rational and irrational numbers.

real numbers

9

A mathematical sentence that expresses the relationship between certain quantities.

formula

10

Symbols, usually letters, used to represent unknown quantities.

variables

11

An expression that contains at least one variable.

algebraic expression

12

A mathematical sentence stating that two mathematical expressions are equal.

equation

13

Two inequalities joined by the word "and" or the word "or".

compound inequality

14

The expression of the solution set of an inequality, for example {x/x>9}.

setbuilder notation

15

A real number that is not rational. The decimal form neither terminates nor repeats.

irrational number

16

The solution set for an equation that has no solution, symbolized by { } or an "O" with a slash through it.

empty set

17

Using the infinity symbols to indicate the solution set of an inequality is unbounded in the positive or negative direction.

interval notation