49 terms

distributive property

a(b+c) = ab + ac

SOH-COA-TOA

short for sine - opposite over hypotenuse, cosine - opposite over adjacent, tangent - opposite and adjacent

area of circle

A = πr²

perimeter

the distance around a shape

perpendicular

intersecting at right angles

Pythagorean Theorem

a² + b² = c²

binomial

a polynomial with 2 terms

FOIL

method for multiplying binomials: first, outer, inner, last

absolute value

distance a number is from zero on a number line, ALWAYS POSITIVE

x-coordinate

first number of an ordered pair, it corresponds to a number on the x-axis

arithmetic sequence

a sequence in which each term is found by adding the same number to the previous term

tangent

ratio of the opposite to the adjacent side of a right triangle

percent

special ratio that compares a number to 100 using the symbol %

expression

math statement that combines numbers and operations, but doesn't have an equal sign.

real numbers

all the numbers that can be represented by points on a number line.

integer

numbers without fractional or decimal parts (positive, negative and/or zero)

logarithm (log)

the exponent that a specified base must be raised to in order to get a certain value

proportion

equation that states two ratios are equal

endpoints

points that represent the ends of a line segment or ray, A and B in the picture

rearranging

putting things in a different order

hypotenuse

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

even integer

integers that end in 0, 2, 4, 6, or 8; an integer that is divisible by 2

(x, y) coordinate plane

a plane containing two perpendicular axes (x and y) intersecting at a point called the origin (0,0)

theta

the symbol θ which is commonly used as a variable for an angle

constant rate

steady change

preceeding term

term before the current term

sin B, cos A, tan C

sine of angle B, cosine of angle A, tangent angle C

segment

part of a line with two endpoints

cosine

ratio of the adjacent side to the hypotenuse in a right triangle

vertex

point where two or more straight lines meet, the top of bottom of a parabolla

origin

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

formula

mathematical relationship or rule expressed in symbols

right triangle

a triangle with one right angle

y-coordinate

second number of an ordered pair, corresponds to a number on the y-axis.

inequality

mathematical sentence that compares two amounts using the symbols; >, <, ≤, ≥, or ≠

∠CBA

angle with a vertex located at point B and sides of C and A

reciprocal

flip of a fraction

square units

measure of area, a square one unit by one unit

x-axis

horizontal axis on the coordinate plane

slope

steepness of a line, rise over run, vertical change over horizontal change

diameter

distance across a circle through its center

quadrants

4 regions on a coordinate plane separated by the x-axis and y-axis.

like terms

simplifying an expression by combining terms with the same variable(s) to the same exponent(s)

term

numbers and/or variables separated by addition or subtraction

π

ratio of a circle's circumference to its diameter, approximately 3.14

ratio

a comparison of two numbers by division

equation

mathematical statement that two expressions are equal, includes the symbol =

product

answer to a multiplication problem

slope-intercept form

y = mx + b