8th Grade TAKS Math Vocabulary

57 terms by abtack

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annual

occurring once each year ; yearly

approximate

not exact,but close enough to be reasonably correct

base

a number multiplied by itself as indicated from the exponent (the base number is to be multiplied by itself as many times as the exponent says)

best estimate

not exact, but close to exact amount

calculate

(v.) to find out by adding, subtracting, multiplying, or dividing; to figure out by reason or logic

capacity

the amount a container can hold

circumference

The distance around a circle

congruent

same shape and same size

consecutive

following in order or without interruption

coordinate plane

a grid formed by two number lines that intersect at their zero points. The two axes meet at the ordered pair (0, 0) and divide the plane into four quadrants

corresponding sides

Two sides that are in the same position in the original and the image.

data

Facts, figures, and other evidence gathered through observations.

diagonal

a line that slants; connecting two non-adjoining vertices

dilate

To enlarge in all directions.

dimensions

length, width, and height

doubled

multiplyed by two

edge

line along which two planes of a solid figure meet

enlargement

Making a new image that is bigger than the original figure

estimate

to figure out; to determine roughly; to calculate; a rough guess as to size, value, etc.; an opinion

exclude

leave out

expression

the part of a number sentence that combines numbers and operations, but doesn't have an equal sign.

generate

to produce or create

inaccurate

not correct or reasonable

irregular figure

a figure with noncongruent sides and interior angles

lateral area

the sum of the areas of the lateral faces of a solid; go around the sides, not the bases

mean

The average (add all values and divide by how many there are)

median

The middle number in a list. Put numbers in order FIRST. If there are 2 numbers in the middle, add them and divide by 2.

mode

the number that appears the most times

multiples

the product of two factors

nth term

generlization that is used to describe any given number in a sequence

origin

the point of intersection of coordinate axes

parallel

lines that will never meet, no matter how long you stretch them (like railroad tracks!)

perimeter

the distance around the outside (add up all the sides)

potential

posible, able to happen, something that can develop

prism

has to have 2 bases that are identical and all other faces are rectangles

product

answer to a multiplication problem

pyramid

Three dimensional figure with triangluar faces that meet at a vertex. The edges form a point at the top. Named for the shape of the base

quotient

the answer of a division problem

random

by chance, not planned or prearranged; irregular

range

to find this, you subtract the smallest number from the biggest

ratios

a ratio is a comparison of two quantities; it is sometimes expressed as a fraction.

reduction

Making a new image that is smaller than the original figure

reflection

a transformation that produces the miror image of a geometric figure over a line of reflection

revenue

Total Amount of money a business takes in during a given period selling goods and services

rotation

The original image is the square labeled ABDC. The image after rotating the square 45 degrees (counterclockwise) about its center gives the square labeled A'B'D'C'.

scale factor

In a transformation, the number by which the distance of the preimage from the center of dilation is multiplied to determine the distance of the image point from its center.

scientific notation

There are two parts of the scientific notation. The first part is a number between 1-10. The second part is a power of ten. example: 2.25 * 10^4

set

a group of things of the same kind that belong together and are so used

similar

same shape, but different size

squared

Any number or variable with a 2 for an exponent is said to be squared.

total surface area

the sum of all the areas of the faces and bases of a solid figure

transformation

Some transformations, like dilation, affect the size of the figure. Other transformations are translations, reflections, and rotations.

trend

a pattern over time, such as increasing, decreasing, or staying the same, that is shown by data in part or all of the graph

twice

two times, double

valid

well-supported by facts; true

vertex

The point where 2 rays meet in an angle or 2 or more line segments meet in plane figures, or 3 or more sides meet in solid figures

vertical

line going up and down

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