###
angle of depression

angle from horizontal down to line of sight

###
angle of elevation

angle of horizontil up to line of sight

###
apothem

line segment from the center to the midpoint of one of its sides

###
asymtope

a line that a graph approaches but never reaches

###
axis of symmetry

A vertical line that divides the parabola in 2 halfs

###
binomial

a polynomial with two terms - the sum of two monomials

###
conditional

any sentence writen in if-then form

###
conjugates

the sum and the difference of the same two terms

###
constant of variation

The nonzero constant k in the function y = kx.

###
converse

switch the hypothesis and the conclusion

###
cosine

adajecnt divided by hypotenuse

###
degree of a monomial

The sum of the exponents of the variables of a monomial.

###
degree of a polynomial

The degree of the term with the greatest exponent for a polynomial in one variable.

###
extraneous solution

a solution to an equation that does not satisfy the original equation

###
hypotenuse

side opposite of the right angle (longest side of a right triangle)

###
inverse variation

y = k / x or xy = k

###
leg

the sides adjacent/beside the right angle

###
like radicals

radicals with the same radicand

###
midpoint

point half way between the two end points

Formula = x one plus x two divided by 2 , y one plus y two divided by 2

###
parabola

the graph of a quadratic formula that is in the shape of a U

###
parallelogram

is a quadrilateral with TWO pairs of parallel sides

###
perfect squares

squares of the integers

###
perfect - square trinomial

for every real number a and b --> a^2 + 2ab + b = (a+b)^2

###
polynomial

The sum or difference of two or more monomials

###
principle square root

positive square root

Example - square root of 16 = 4

###
quadratic equation

x = -b plus or mius the square root of b^2 - 4ac divided by 2a

###
quadratic function

ax^2 + bx + c = y

###
radical equation

an equation with a variable in the radicand

Example = (square root of x) - 3 = 4

###
radicand

expression inside the radical sign

###
radius of a polygon

distance from the center to the vertex - hypotenuse

###
rational equation

equation that contains one or more rational expressions

###
rational expression

a fraction with a variable in the top and bottom

###
rational function

a function with at least x in the denominator

###
rationalize the denominator

you multiply the numerator and the denominator by the same radical expression

###
rectangle

any quadrilateral with four right angles

###
rhombus

quadrilateral whose four sides all have the same length

###
sine

opposite / hypotenuse

###
square

quadrilateral that has four sides that are all the same length and four right angles

###
square root

the number a is the square root of b is a = b

###
square root function

function with the independent variable under the square root symbol

Example - y = x

###
standard form of a polynomial

exponents go down according to the power

###
tangent

opposite / adjacent

###
trapezoid

a quadrilateral with one pair of parallel sides

###
trigonometric ratios

ratio of sides of a right triangle

###
trinomial

polynomial consisting of 3 term

###
vertex of a parabola

highest of lowest point of the parabola

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