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Pre-Algebra > Unit 1 Vocab > Flashcards

Unit 1 Vocab Flashcards

Studying for the unit 1 test and for the end of the year test!!!

1
Q

Numerical Expression

A

Consists of numbers and operations.

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2
Q

Variable

A

A letter used to represent one or more number.

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3
Q

Variable Expression

A

Consists of numbers, operations, and variables.

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4
Q

Evaluate a Variable Expression

A

Substitute a number for each variable and evaluate the resulting numeral expression.

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5
Q

Verbal Model

A

Descibes a problem using words as tables and using math symbols to relate the words.

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6
Q

Power

A

The result of a repeated multiplication of the same factor.

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7
Q

Base

A

The number or the variable that is used as a factor in repeated multiplication.

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8
Q

Exponet

A

The number that reepresents the number of times the base is used as a factor.

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9
Q

Formula

A

Describes the relationship between quantities.

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10
Q

Order of Operations

A 
The rules established to evaluate an expression involving more than one operation.
Perentheses
Exponents
Multiplication
Division
Addition
Subtraction
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11
Q

Grouping Symbols

A

Indicate operations that should be performed first. Parentheses ( ) Brackets [ ] and fraction bars are common grouping symbols.

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12
Q

Integers

A

Numbers such as -3;-2;-1;0;1;2;3;4

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13
Q

Negative Integers

A

Integers that are less than zero.

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14
Q

Positive Integers

A

Integers that are greater than zero.

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15
Q

Absolute Value

A

The absolute value of a number is its distance from zero on a number line. The absolute value of a number is written as lal

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16
Q

Opposites

A

Two numbers are opposites if they have the same absolute value, but different signs. (5; -5)

17
Q

Additive Inverse

A

The opposite of a number can also be called its additive inverse.

18
Q

Additive Inverse Property

A

The sum of a number and its opposite is zero.

19
Q

Coordinate Plane

A

A coordinate plane is formed by the intersection of a horizontal number line and a vertical number line.

20
Q

X-Axis

A

The horizontal axis in a coordinate plane.

21
Q

Y-Axis

A

The vertical axis in a coordinate plane.

22
Q

Origin

A

The point (0,0) in a coordinate plane at which the horizontal axis intersects the vertical axis.

23
Q

Quadrant

A

One of the four parts into which the axis divide the coordinate plane.

24
Q

Ordered Pair

A

Each point in the coordinate plane corresponds to an ordered pair of real numbers.

25
Q

X-Coordinate

A

The first number in an ordered pair is the x-coordinate.

26
Q

Y-Coordinate

A

The second number in an ordered pair is the y-coordinate.

27
Q

Scatter Plot

A

A scatter plot uses a coordinate plane to display paired data.

Pre-Algebra (3 decks)

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