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Math - Evan Luc > Pre algebra vocabulary > Flashcards

Pre algebra vocabulary Flashcards

2
Q

Term

A

the number or an expression that is separated by addition and subtraction signs

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3
Q

Coefficient

A

the numerical part of a variable term

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4
Q

Factor

A

when two numbers are multiplied.

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5
Q

Quotient

A

an answer to a division problem

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6
Q

Constant

A

a term that is a number

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7
Q

Integer

A

consisted of negative and positive whole number, including 0

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8
Q

Absolute Value

A

the distance between the number and 0 on a number line

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9
Q

Opposites

A

two numbers that have the same absolute value but have different signs

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10
Q

Coordinate Plane

A

formed by a horizontal number line called the x-axis and a vertical number line called the y-axis

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11
Q

Origin

A

the point (0,0) where the x-axis and the y-axis intersect in a coordinate plane

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12
Q

Ordered Pair

A

a pair of numbers that can be used to locate a point in a coordinate plane. The first number is the x-coordinate, and the second number is the y-coordinate

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13
Q

bar graph

A

a type of graph in which the lengths of bars are used to represent and compare data in categories

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14
Q

frequency table

A

A table that lists items together according to its interval which is the number of times, or frequency, that the items occur http://farm3.staticflickr.com/2044/2353314675_5573442c74.jpg

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15
Q

histogram

A

A bar graph where the bars touch, where the height of each bar indicates its frequency, and where data is grouped into intervals http://farm2.staticflickr.com/1146/671776081_2e2a57d957.jpg

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16
Q

perimeter

A

The sum of the lengths of the sides of a polygon

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17
Q

area

A

the number of square units needed to cover a flat surface

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18
Q

integers

A

Positive and Negative Whole Numbers and 0

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19
Q

additive identity property

A

The sum of a number and zero is always that number.

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20
Q

additive inverse property

A

The sum of a number and its opposite is zero.

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21
Q

multiplication identity property

A

The product of any number and one is that number.

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22
Q

mean

A

the sum of the values in a data set divided by the number of values in the set

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23
Q

commutative property of addition

A

In a sum, you can add terms in any order, a + b = b + a

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24
Q

commutative property of multiplication

A

the order of the factors does not change the product a x b = b x a

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25
Q

associative property of addition

A

changing the grouping of terms will not change the sum, (a + b) + c = a + (b + c)

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26
Q

associative property of multiplication

A

changing the grouping of factors will not change the product, (ab)c = a(bc)

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27
Q

distributive property

A

a(b + c) = ab + ac

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28
Q

coordinate plane

A

A plane that is divided into four regions by a horizontal line called the x-axis and a vertical line called the y-axis.

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29
Q

quadrant

A

one of four sections into which the coordinate plane is divided

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30
Q

Inverse Operation

A

operations that undo each other, such as addition and subtraction

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31
Q

Inequality

A

A statement that compares two quantities using greater than, less than, or equal to

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32
Q

prime number

A

A whole number that has exactly two factors, 1 and itself.

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33
Q

composite

A

a number that has more than two factors

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34
Q

prime factorization

A

a number written as the product of its prime factors

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35
Q

greatest common factor

A

The largest factor that two or more numbers have in common.

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36
Q

equivalent fractions

A

fractions that have the same value and the same simplest form

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37
Q

multiple

A

skip-counting by any given number

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38
Q

least common multiple

A

the smallest multiple that two or more numbers have in common

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39
Q

least common denominator

A

The least common multiple of the denominators of two or more fractions.

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40
Q

scientific notation

A

a method of writing very large or very small numbers by using powers of 10

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41
Q

reciprocal

A

one of a pair of numbers whose product is 1: the reciprocal of 2/3 is 3/2

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42
Q

rational number

A

A number that can be written as a/b where a and b are integers, but b is not equal to 0.

43
Q

median

A

is the middle value in a data set where the numbers are ordered least to greatest

44
Q

mode

A

is the value in a data set that occurs most often. If all values occur the same amount of times there is no mode for that set.

45
Q

range

A

is the difference of the greatest value and the least value in a set of data.

46
Q

circle

A

is the set of all points that are an equal distance from a point called the center

47
Q

center

A

the point in the exact middle of a circle

48
Q

radius

A

a line segment from the center of a circle to any point on the circle (is also half the diameter)

49
Q

diameter

A

the distance across a circle through its center (is also twice the radius)

50
Q

circumference

A

The distance around a circle.

51
Q

ratio

A

a comparison of two numbers by division

52
Q

rate

A

a ratio that compares two quantities measured in different units

53
Q

unit rate

A

a rate that has a denominator of 1

54
Q

proportion

A

an equation that states that two ratios are equal

55
Q

percent

A

a ratio whose denominator is 100

56
Q

pie graph

A

a graph that best shows part of a whole or the percentage out of 100%

57
Q

markup

A

the amount the price of an item is increased above the price the store is paid for the item

58
Q

discount

A

a decrease in the price of an item

59
Q

interest

A

is the amount paid for borrowing or lending money

60
Q

principal

A

the original amount of money loaned or borrowed

61
Q

annual interest rate

A

the percent of the principal you pay or earn a year

62
Q

favorable outcome

A

the outcome you would perfer happen.

63
Q

probability of an event

A

number of favorable outcomes divided by total number of possible outcomes

64
Q

theoretical probability

A

what should occur in a probability experiment…an experiment is not actually done

65
Q

experimental probability

A

probability based on what happens when an experiment is actually done

66
Q

supplementary angles

A

angles whose sum is 180 degrees

67
Q

complimentary angles

A

angles that add up to 90 degrees

68
Q

vertical angles

A

a pair of opposite congruent angles formed by intersecting lines

69
Q

perpendicular lines

A

two lines that intersect to form a right angle

70
Q

parallel lines

A

two lines that never intersect

71
Q

acute triangle

A

a triangle with 3 acute angles

72
Q

obtuse triangle

A

a triangle with one obtuse angle

73
Q

right triangle

A

A triangle that has a 90 degree angle.

74
Q

equilateral triangle

A

a triangle with three equal sides

75
Q

isosceles triangle

A

a triangle with two equal sides

76
Q

scalene triangle

A

a triangle with no equal sides

77
Q

trapezoid

A

a quadrilateral with exactly one pair of parallel sides

78
Q

parallelogram

A

A quadrilateral with two pairs of parallel sides

79
Q

rhombus

A

a parallelogram with four equal sides

80
Q

congruent angles

A

angles with the same measure

81
Q

reflection

A

A transformation that “flips” a figure over the x or y axis

82
Q

line of symmetry

A

a line that divides a figure into two halves that are mirror images of each other

83
Q

translation

A

moves each point in a figure the same distance and direction, the new image is congruent to the original

84
Q

rotation

A

a transformation that turns the original figure around the origin 90, 180, or 270 degrees clockwise or counter clockwise

85
Q

similar figures

A

figures that have the same shape but different sizes; their angles are congruent and their sides are proportional

86
Q

scale factor

A

the number used to enlarge or reduce similar figures

87
Q

perfect square

A

a number that has a whole number for a square root ex: 9, 16, 121

88
Q

irrational number

A

a number that can not be written a/b

89
Q

hypotenuse

A

the side of a right triangle opposite the right angle, also the longest side of a right triangle

90
Q

legs

A

the two sides that make up the right angle in a right triangle

91
Q

Pythagorean Theorem

A

a²+b²=c²

92
Q

net

A

a two-dimensional pattern that forms a three-dimensional solid when formed

93
Q

surface area

A

The total area of the 2-dimensional surfaces that make up a 3-dimensional object.

94
Q

volume

A

the amount of 3-dimensional space occupied by an object

95
Q

x-intercept

A

the point where a graph crosses the x-axis

96
Q

y-intercept

A

the point where a graph crosses the y-axis

97
Q

slope

A

the steepness of a line on a graph, rise over run

98
Q

slope intercept form

A

y = mx + b

99
Q

stem and leaf plot

A

A data display that shows groups of data arranged in order by place value.

100
Q

box and whisker plot

A

a diagram that summarizes data using the median, the upper and lower quartiles, and upper and lower extremes.

101
Q

odds

A

the ratio of the number of ways the event can occur to the number of ways the event cannot occur. Favorable over Unfavorable.

Math - Evan Luc (6 decks)

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