Zab Algebra I Final Exam

47 terms by a_a_w 

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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

hexagon

six-sided figure

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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