Unit 1 Vocab

Question 1

Numerical Expression

Answer 1

Consists of numbers and operations.

Question 2

Variable

Answer 2

A letter used to represent one or more number.

Question 3

Variable Expression

Answer 3

Consists of numbers, operations, and variables.

Question 4

Evaluate a Variable Expression

Answer 4

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

Question 5

Verbal Model

Answer 5

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

Question 6

Power

Answer 6

The result of a repeated multiplication of the same factor.

Question 7

Base

Answer 7

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

Question 8

Exponet

Answer 8

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

Question 9

Formula

Answer 9

Describes the relationship between quantities.

Question 10

Order of Operations

Answer 10

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

Question 11

Grouping Symbols

Answer 11

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

Question 12

Integers

Answer 12

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

Question 13

Negative Integers

Answer 13

Integers that are less than zero.

Question 14

Positive Integers

Answer 14

Integers that are greater than zero.

Question 15

Absolute Value

Answer 15

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

Question 16

Opposites

Answer 16

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

Question 17

Additive Inverse

Answer 17

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

Question 18

Additive Inverse Property

Answer 18

The sum of a number and its opposite is zero.

Question 19

Coordinate Plane

Answer 19

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

Question 20

X-Axis

Answer 20

The horizontal axis in a coordinate plane.

Question 21

Y-Axis

Answer 21

The vertical axis in a coordinate plane.

Question 22

Origin

Answer 22

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

Question 23

Quadrant

Answer 23

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

Question 24

Ordered Pair

Answer 24

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

Question 25

X-Coordinate

Answer 25

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

Question 26

Y-Coordinate

Answer 26

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

Question 27

Scatter Plot

Answer 27

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