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Absolute value

The distance from zero...distance can never be negative

Acute Angle

An angle with a measure less than 90 degrees

radius

Distance in a circle from the center to the outside of the circle

diameter

distance across a circle

coefficient

the number before a variable (assume one if a coefficent isn't written)

Alike terms

Terms that have the same variable and exponent

combining alike terms

add the coefficient keep the variable

complementary angles

two or more angles with measures that have the sum of 90 degrees

supplementary angles

two or more angles with measures the sum of 180 degrees.

inequality on a number line

less than left ray

more than right ray

equal sign closed circle

no equal sign open circle

intervals

The amount each "notch" on your x or y axis is worth (intervals must be consistant...going up by the same amount)

congruent

exact sme shape and size (same measure)

similar

Same shape different size

coordinate grid

a graph with x and y axis'

cube

a solid figure with six congruent sides.

Think of a dice

A square prism

Cylinder

Like a prism but with a circular base

height of a prism

the distance between the two bases

height of a triangle

Drop a line from the top of the triangle straight down to the bottom...(forms the right angle)

difference

subtract

dilation

a change in size proportionally (increase or decrese) in all dimensions .

discrete data

NO lines, a set of points not connected...in word problems there can be no half portions, they points represent items (tickets, magazines...etc.)

Continuous data

data over time or with a liquid or distance...something that changes constantly.

distributive property

Multiply the number outside the ( ) by each term inside the ( ).

Domain

Set of x values

Input values

Range

Set of y values

estimate

you must estimate...do not give them the exact answer!!

Explain

Write down a sentence telling how and why you did something.

Constant

A number without a variable

rational number

any fraction, terminating or repeating decimal, all integers and whole numbers, &

perfect squares.

Irrational numbers

Any number with Pi or a non perfect square root, non terminating non repeating decimals.

Integers

positive and negative whole numbers

whole numbers

0,1,2,3....

natural numbers

1,2,3.... (just not the 0)

Expression

no equal sign

equation

has an equal sign

scientific notation

a number greater than 1 but less than 10 multiplied by 10 with an exponent that represents how you moved your decimal

negative exponent with scientific notation

this starts off as a small, small decimal (always a number less than 1)

positive exponent with scientific notation

this is a large number usually greater than 100 (always greater than 10)

fraction

a fraction means division

multiplying fractions

multiply across the numberator and multiply across the denominator

simplifying fractions

arrow one multiply across the numerator, arrow two divide across the denominator.

hypotenuse

the longest side in a right triangle always directly across from the right angle.

histogram

like a bar graph but without the spaces between them.

ratio

make a fraction

unit rate

how much for one? Divide

intersection

the point where two lines meet

market equilibrium

when your expenses and profit even out (the point where the two lines intersect...)

Isosceles triangle

two congruent sides (same measure), two congruent base angles.

lateral area

the surface area of all the sides (do not include the top or bottom)

box and whisker graph

seperates data into quartiles (25% portions)

easy to find hi and low and median

scatter plot

Used when there are multiple y value possibilities for one x value.

Maximum

the greatest or highest value

minimum

the lowest value

mean

average

outlier

significantly different that the other data.

trend

increasing (going up at the graph moves right)

decreasing (down as the graph moves right)

No trent (all over the place)

Pythagorean Theorem

In a right triangle, The sum of the squares of the lengths of the legs will be equal to the square of the third side of the triangle.

median

middle number

obtuse angle

angle with a measure larger than 90 degrees

right angle

an angle measure of 90 degrees_{ }

coorresponding angles

two congruent angles in the same place on two different parallel lines

vertical angles

congruent angles that are directly across from each other

adjactent angles

angles that share a vertex and a side

vertex

the **common endpoint for two rays that form an angle**

Origin

Where the x and y axis meet (0,0)

Percent

write a proportion using %/100, partial/total.

odds

are/are not

probability

are/total

Theoretical Probability

used to find the probability of an event when all outcomes are equally likely

Experimental Probability

Determined by actually trying an experiment and recording the outcomes

polygon

a closed figure with straight lines (hexagon, square, etc...)

perpendicular

two lines that meet to form four right angles

product

multiply

radical

"root" for your purposes...square root

pyramid

three dimensional figure that comes to a point opposite of the base. Divide by 3 at the end for volume...

Range

difference between the high and low values

This word has two different uses...

equation for rate of change

the same as slope.

the change in y over the change in x.

Y- Intercept

point where the line crosses y-axis

x-intercept

the x-coordinate of a point where a graph crosses the x-axis

slope-intercept form

y = mx + b

Slope =

rise/run = change in "y"/change in "x"

reciprocal

"flip" your fraction

when do you flip an inequality?

When you multiply or divide by a negative number

reflection

"flip"

coordinates

(x,y)

systems of equations

Solve using:

Elimination

Substitution

Graphing

Answer will always be in coordinate form (where the two lines meet.)

Interior angles of a polygon

180(n-2)

n stands for the number of sides

one interior angles measure inside a regular polygon

180(n-2)/n

n is the number of sides

straight angle

an angle measure of 180 degrees

sum

add

degree

the highest exponent

standard form

either:

Ax + By = C (graphing)

or

highest exponent to lowest

variable

a letter representing an unknown number

metric system

anything with meter, liter or gram

customary system

anything not liter, meter or gram

inverse variation

As the x values increase the y values decrease.

direct variation

Any two fractions proportional...if you cross multiply two sets you will get the same number.

probability

written as a fraction in reduced form unless told otherwise

ratio

write a fraction in simplest form

fraction

divide

unit rate

how much for one? Divide

Equation

Must have an equal sign

Expression

No equal sign allowed

Contrast

How are they different

Compare

How are they the same?

Origin

Where the x and y axis meet (0,0)

About this deck

Author: Renee D.

Created: 2012-03-27

Updated: 2012-03-27

Size: 106 flashcards

Views: 383

Created: 2012-03-27

Updated: 2012-03-27

Size: 106 flashcards

Views: 383

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