# 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

### 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

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

### 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

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

ax^2 + bx + c = y

an equation with a variable in the radicand
Example = (square root of x) - 3 = 4

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

### 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

Example: