Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
29 Cards in this Set
- Front
- Back
|
numerical expression
|
consists of numbers and operations. The expression 4*10 is a numerical expression. it can also be written as 4x10 or 4[10]
|
|
|
variable
|
is a latter used to represent one or more numbers
|
|
|
variable expression
|
consists of numbers, variables, and operations
|
|
|
evaluate
|
a variable expression, substitute a number for each variable and evaluate the resolution numerical expression |
|
|
power
|
is the result of a repeated multiplication of the same factor. example: the number 125 is a power because 125= 5*5*5.
|
|
|
base
|
A power can be written in a form that has two parts: a number
|
|
|
exponent
|
the exponent shows the number of times the base is used as a factor
|
|
|
order of operations
|
to evaluate expressions involving more than one operation, mathematicians have agreed on a set of rules
|
|
|
integers
|
are the numbers ..., -3, -2, -1, 0, 1, 2, 3,...(The dots indicate that the numbers continue without end in both the positive and negative directions).
|
|
|
negative integers
|
are integers that are less than 0
|
|
|
positive integers
|
are integers that are greater than 0
|
|
|
absolute value
|
of a number is its distance from 0 on a number line. The absolute value of a number a is written |a|
|
|
|
opposites
|
if they have the same absolute value but different signs. For example, -10 and 10 are opposites.
|
|
|
additive inverse
|
the opposite of a number. Can be written algebraically as a + (-a) = 0 and is called the additive inverse property
|
|
|
mean
|
of a data set is the sum of the values divided by the number of value
|
|
|
median
|
of a data set is the middle value when the values are written in numerical order. If a data set has an even number of values, the median is the mean of the two middle values.
|
|
|
mode
|
of a data set is the value that occurs most often. A data set can have no mode, one mode, or more than one mode.
|
|
|
rage
|
of a data set is the difference of the greatest value and the least value
|
|
|
coordinate plane
|
is formed by the intersection of a horizontal number line called the x-axis and a vertical number line called the y- axis.
|
|
|
ordered pair
|
each point in a coordinate plane is represented by an ordered pair
|
|
|
scatter plot
|
uses a coordinate plane to display paired data
|
|
|
x-axis |
Thehorizontal axis in a coordinate plane |
|
|
y-axis |
The vertical axis ina coordinate plane0B} |
|
|
origin |
Theintersection of the x- and y- axis in a coordinate plane. The coordinate of theorigin are (0,0) |
|
|
quadrant |
One of the fourregions into which the x- and y-axes divide the coordinate plane` nb |
|
|
ordered pair |
A pair of numbersthat can be used to locate a point on a coordinate plane. The first numberindicates the distance to left or right of the origin, and the second numberindicates the distance above or below the origin. |
|
|
x-coordinate |
The first number inan ordered pair, which indicates the horizontal distance of a point from theorigin on the coordinate plane. |
|
|
y-coordinate |
The second number inan ordered pair, which indicates the vertical distance of a point from theorigin on the coordinate plane.`n |
|
|
scatter plot |
A graph with pointsplotted to show a possible relationship between two sets of data |
