Pearson math Algebra Terms For EOC

self explanitory terms for chapters 1-10
Rational Number
A number that can be written as a/b where a and b are integers, but b is not equal to 0.
Natural Numbers
The set of numbers 1, 2, 3, 4, ... Also called counting numbers.
Whole Numbers
All positive integers (including zero)
whole numbers and their opposites
irrational numbers
numbers that cannot be expressed in the form a/b, where a and b are integers and b =0.
Percent Change
the percent a quantity increases or decreases from its original amount
a comparison of two numbers by division
Set of all elements in the universal set that are not in the set
the set of elements common to two or more sets
a set containing all and only the members of two or more given sets
Roster Form
form of writing a set in which you list the names of the members of the set between brackets
Set Builder Notation
a shorthand used to write sets, often sets with infinite number of elements
Direct Variation
Linear Equation
An equation whose graph is a line.
Point slope form
y-y1 = m(x-x1), where m is the slope and (x1,y1) is the point the line is passing through.
Slope intercept form
Elimination method
solving systems by adding or subtracting equations to eliminate a variable
Substitution method
A method of solving a system of equations in which one equation is solved for one variable in terms of the other
a polynomial with two terms
standard form of a polynomial
terms are placed in descending order from largest degree to smallest degree
Smiley face method
when you have to factor x(squared)+bx+c completely
Factoring By Grouping
The use of the Distributive Property to factor some polynomials having four or more terms
Perfect Square Trinomial
a trinomial whose factored form is the square of a binomial
the expression under the radical in the quadratic formula b squared minus four a*c