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angle of depression

angle from horizontal down to line of sight

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angle of elevation

angle of horizontil up to line of sight

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apothem

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

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asymtope

a line that a graph approaches but never reaches

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axis of symmetry

A vertical line that divides the parabola in 2 halfs

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binomial

a polynomial with two terms - the sum of two monomials

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conditional

any sentence writen in if-then form

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conjugates

the sum and the difference of the same two terms

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constant of variation

The nonzero constant k in the function y = kx.

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converse

switch the hypothesis and the conclusion

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cosine

adajecnt divided by hypotenuse

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degree of a monomial

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

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degree of a polynomial

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

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extraneous solution

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

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hypotenuse

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

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inverse variation

y = k / x or xy = k

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leg

the sides adjacent/beside the right angle

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like radicals

radicals with the same radicand

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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

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parabola

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

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parallelogram

is a quadrilateral with TWO pairs of parallel sides

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perfect squares

squares of the integers

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perfect - square trinomial

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

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polynomial

The sum or difference of two or more monomials

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principle square root

positive square root

Example - square root of 16 = 4

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quadratic equation

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

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quadratic function

ax^2 + bx + c = y

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radical equation

an equation with a variable in the radicand

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

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radicand

expression inside the radical sign

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radius of a polygon

distance from the center to the vertex - hypotenuse

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rational equation

equation that contains one or more rational expressions

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rational expression

a fraction with a variable in the top and bottom

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rational function

a function with at least x in the denominator

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rationalize the denominator

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

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rectangle

any quadrilateral with four right angles

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rhombus

quadrilateral whose four sides all have the same length

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sine

opposite / hypotenuse

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square

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

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square root

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

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square root function

function with the independent variable under the square root symbol

Example - y = x

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standard form of a polynomial

exponents go down according to the power

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tangent

opposite / adjacent

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trapezoid

a quadrilateral with one pair of parallel sides

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trigonometric ratios

ratio of sides of a right triangle

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trinomial

polynomial consisting of 3 term

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vertex of a parabola

highest of lowest point of the parabola

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