Algebra 1 Shs

Front 1

variable

Back 1

symbol that represents a number

Front 2

algebraic expression

Back 2

math phrase that includes numbers, variables, and operations symbols

Front 3

equation

Back 3

math sentence that shows two expressions are equal

Front 4

open sentence

Back 4

math equation that has one or more variables

Front 5

exponent

Back 5

tells how many times a base is multiplied

Front 6

base

Back 6

the number in a power being multiplied

Front 7

power

Back 7

base and exponent as one

Front 8

order of operation

Back 8

PEMDAS

Front 9

evaluate

Back 9

substituting numbers for variables then simplifying

Front 10

natural numbers or counting numbers

Back 10

1, 2, 3, 4, etc

Front 11

whole numbers

Back 11

0, 1, 2, 3, 4 etc

Front 12

integers

Back 12

. . . -2, -1, 0, 1, 2 . . .

Front 13

rational number

Back 13

numbers that can be written as fractions and decimals

Front 14

irrational number

Back 14

number that cannot be written in fraction form

Front 15

real numbers

Back 15

rational and irrational numbers

Front 16

counterexample

Back 16

example that proves a statement false

Front 17

inequality

Back 17

math sentence that uses less than, greater than, etc

Front 18

opposites

Back 18

numbers that are the same distance from zero in different directions

Front 19

absolute value

Back 19

a numbers distance from zero

Front 20

coordinate plane

Back 20

two number lines that intersect at right angles

Front 21

x axis

Back 21

horizontal line

Front 22

y axis

Back 22

vertical line

Front 23

origin

Back 23

point where axes intersect

Front 24

quadrants

Back 24

four sections of the coordinate plane

Front 25

ordered pair

Back 25

(x, y)

Front 26

midpoint

Back 26

halfway between two endpoints

Front 27

function

Back 27

relationship that assigns exactly one output for each input

Front 28

function rule

Back 28

equation that describes a relationship

Front 29

dependent variable

Back 29

y value, output

Front 30

independent variable

Back 30

x value, input

Front 31

domain

Back 31

inputs

Front 32

range

Back 32

outputs

Front 33

scatter plot

Back 33

graph that relates to sets of data as positive correlates, negative correlates, or no correlate

Front 34

positive correlation

Back 34

both data values increase

Front 35

negative correlation

Back 35

one data value increases, one data value decreases

Front 36

no correlation

Back 36

unrelated data sets

Front 37

undefined correlation

Back 37

one data set shows no change

Front 38

measures of central tendency

Back 38

mean, median, mode

Front 39

mean

Back 39

average

Front 40

median

Back 40

middle value of data set when organized least to greatest

Front 41

mode

Back 41

data value that occurs the most often

Front 42

range

Back 42

difference between greatest value and least value

Front 43

outlier

Back 43

data value that is too large or too small

Front 44

stem and leaf plot

Back 44

data table using the digits of the values

Front 45

identity property

Back 45

8 x 1 = 8
r + 0 = r

Front 46

additive inverse

Back 46

the opposite of a number

Front 47

inverse property of addition

Back 47

-8 + 8 = 0

Front 48

matrix

Back 48

rectangular arrangement of numbers in rows and columns

Front 49

element

Back 49

an item value in a matrix

Front 50

multiplication property of zero

Back 50

h x 0 = 0

Front 51

multiplication property of -1

Back 51

-1 x r = -r

Front 52

multiplicative inverse

Back 52

reciprocal

Front 53

term

Back 53

number, variable, or product of number and variable

Front 54

constant

Back 54

term that has no variable

Front 55

coefficient

Back 55

number before a variable

Front 56

like terms

Back 56

terms with exactly the same variables

Front 57

probability

Back 57

how likely something is to happen

Front 58

outcome

Back 58

result of a single trial

Front 59

sample space

Back 59

all possible outcomes

Front 60

event

Back 60

any outcome or group of outcomes

Front 61

theoretical probability

Back 61

number of favorable outcomes divided by number of possible outcomes

Front 62

complement of an event

Back 62

all outcomes not in the event

Front 63

odds

Back 63

comparing favorable events to unfavorable events

Front 64

experimental probability

Back 64

number of times and event occurs divided by number of times the experiment is done

Front 65

independent events

Back 65

events that do not influence one another

Front 66

dependent events

Back 66

events that influence each other

Front 67

identity

Back 67

an equation that is true for every value of the variable
EX. 2x = 2x

Front 68

literal equation

Back 68

equation involving two or more variables

Front 69

ratio

Back 69

comparison of two numbers by division

Front 70

rate

Back 70

quantities measured in different units

Front 71

unit rate

Back 71

rate with a denominator of 1

Front 72

unit analysis or dimensional analysis

Back 72

conversion from one unit of measurement to another

Front 73

proportion

Back 73

an equation that states two ratios are equal

Front 74

extremes of proportion

Back 74

values "a" and "d" of ratios

Front 75

means of proportion

Back 75

values "b" and "c" of ratios

Front 76

cross products

Back 76

products "ad" and "bc" of ratios

Front 77

dilation

Back 77

transformation in which a figure and its image are similar (smaller or bigger)

Front 78

scale factor

Back 78

ratio by which an image is enlarged or reduced

Front 79

scale drawing

Back 79

enlarged or reduced drawing that is similar to actual

Front 80

scale

Back 80

ratio of a distance corresponding to the actual distance

Front 81

consecutive integers

Back 81

integers that differe by 1

Front 82

uniform motion

Back 82

an object that moves at a constant rate

Front 83

percent of change

Back 83

ratio of "amount of change" divided by "original amount"

Front 84

percent of increase

Back 84

value increases from its original amount

Front 85

precent of decrease

Back 85

value decreases from its original amount

Front 86

greatest possible error

Back 86

error that is one half of the measuring unit

Front 87

percent error

Back 87

ratio of "greatest possible error" divided by "measurement"

Front 88

principal square root

Back 88

positive value

Front 89

negative square root

Back 89

negative symbol outside of radical symbol

Front 90

radicand

Back 90

the expression under the radical symbol

Front 91

perfect squares

Back 91

1, 4, 9, 16, 25, 36, 49 etc

Front 92

hypotenuse

Back 92

longest side of a right triangle

Front 93

leg

Back 93

other shorter sides of a right triangle

Front 94

pythagorean theorem

Back 94

a^2 + b^2 = c^2

Front 95

45-45-90 triangle theorem

Back 95

hypotenuse = leg times the square root of 2

Front 96

30-60-90 triangle theorem

Back 96

hypotenuse = 2 times the shorter leg

longer leg = square root of three times shorter leg

Front 97

solution of an inequality

Back 97

any number that makes the inequality true

Front 98

equivalent inequalities

Back 98

inequalities with the same solutions

Front 99

compound inequality

Back 99

two inequalities joined by the word "and" or "or"

Front 100

set

Back 100

well defined collection of numbers called elements

Front 101

elements

Back 101

numbers in a set

Front 102

intersection

Back 102

set of all numbers that are common to both sets

Front 103

null set

Back 103

has no elements

Front 104

union

Back 104

set of all numbers that are in "either" of the sets