MATH
Outlier Data
A piece of data separate from the majority
Curve of Best Fit (Linear)
a curve the best approximates the trend on a scatter plot.
Curved of Best Fit (Quadratic)
a curve the best approximates the trend on a scatter plot.
Curved of Best Fit (Exponential)
a curve the best approximates the trend on a scatter plot.
No Correlation
Dots or pieces of data spread across a graph, unable to form a trend line.
Negative Linear Relationship (Correlation)
a relationship where data of the y value decreases, while data of the x value increases
Positive Linear Relationship (Correlation)
a relationship where data of the y value increases, while data of the x value increases
Scatterplot
numerical data on a visual graph
Mode
the value that appears most out of a data set
Median
for pieces of data that has an odd number, the middle value is the median. however, for pieces of data with en even number, take the mean of the two middle value to get the median.
Mean
the average of all values in a data set. (find the sum of all values in a data set, then divide the sum by the number of values)
Summation
The sum of all values in a data set.
Combination (and its formula)
the number of possible ways to arrange or select objects when there is no order.
Geometric Sequence
sequence of numbers where the terms is being continuously multiplied by a rate
Inverse of a Function
the process of when x & y value switch place; (2,9) → (9,2); y=7x-4 → y=(x/7)+(4/7)
Discontinuity
a point at which a function is discontinuous or undefined.
Linear Function (Vertical Dilation)
vertical dilation (stretch or compression) of the parent function, f(x) = x
Transformations of Parent Function (Translation)
translations of a function strictly affects the ‘C’ and ‘D’
Transformations of Parent Function (Dilation)
dilation of a function strictly affects the ‘A’ and ‘B’ values,
Transformations of Parent Function (Reflection)
reflection of a function strictly affects the ‘A’ and ‘B’ values when turned negative.
Parent function: Exponential vs. Logarithmic
EXPONENTIAL: f(x) = b^x where b > one.
LOGARITHMIC: f(x) = log-base-b (X), where ‘b’ >1
Parent function: Rational
f(x) = 1/x, where x isn’t ‘0’
Parent Function: Cubic vs. Cube Root
CUBIC: f(x)=x^3
CUBE ROOT: f(x)=∛x
Parent Function: Absolute Value vs. Square Root
ABS VAL: f(x) = |x|
SQ RT: f(x) = √x
Function Notation
one input per output using the term ‘f(x)’
End Behavior
term used to dictate the domain and range of a function; i.e.:
x→∞, f(x) →∞
x→-∞, f(x)→-∞
Extrema
the amount of vertices on a function.
Increasing/Decreasing
a function can be described as increasing/decreasing/constant for either an interval or for the entire domain
Range
all ‘y’ values in a function
Domain
all ‘x’ values in a function
Function
relationship between x & y values that forms data that could be represented through a line on a graph
Relations
a set of ordered pairs
Quadratic Formula
Vertex of a Quadratic Function
The global/absolute maximum or minimum of the function.
Graph of a Quadratic Equation
Parabola/f(x)=ax^2+bx+c
Dependent/Independent Variable
X-value serves as an independent value (time, age, ect)
Y-value serves as a dependent variable (money, population, ect.)
System of Linear Inequalities
Graphing Linear Inequalities
Systems of Equations (Linear)
Systems of Equations (Quadratic)
Systems of Equations (Linear) (Elimination)
the process of scaling and subtracting two equations from each other to find an ordered pair.
Systems of Equations (Linear) (Substitution)
the process of scaling two functions and setting them equal to each other to find an ordered pair.
Systems of Equations (Linear) (Graphing)
Parallel Lines
Two linear functions of a graph that will never intersect
Perpendicular Lines
Two linear functions that intersect at a 90 degree angle
Slopes of Lines
change in y/change in x
Slope Formula
Slope
‘m’ in ‘y=mx+b’
Equivalent Forms of A Linear Equation
Linear Equation Point-Slope Form
Linear Equation Slope-Intercept Form
Linear Equation Standard Form
Absolute Value Inequalities
Division Property of Inequalities
Multiplication Property of Inequality
Addition/Subtraction Property of Inequality
Transition Property of Inequality
Graphing of an Inequality
Inequality
an algebraic sentence or function comparing two quantities
Quadratic Equation (number/types of roots)
two distinct real roots; one real w/ multiplicities; zero real, two complex roots
Quadratic Equation
f(x)=ax^2+bx+c
Horizontal Line
y=c; c can be any real #; constant function
Vertical Line
x=a; a can be any real #; constant function
Literal Equation
formula/equation that consists primarily of variables
Coordinate Plane
two dimensional graph with ability to plot points and functions
X-intercept
where a function intercepts when y=0
Zeros
where a function intercepts when y=0
Solutions or Roots
solve using ‘zero product property’
Zero Product Property
if ab = 0, then a = 0 or b = 0.
Add/Subtract Radical Expressions
add/subtract numerical factors of the like radicals.
Square Root
Two factors of a value identical to each other that when multiplied, gives you that value.
Prime Polynomial
Cannot be factored into a product of lesser degree polynomial factors.
Cube Root
nth root
Product Property of Radical
the nth root of a product equals the product of the nth roots
Simplify Radical Expressions
simplify radical and combine like terms when possible
Quotient Property of Radicals
the nth root of a quotient equals the quotient of the nth roots of the numerator and denominator
Divide Polynomials (Monomial Divisor)
divide each term of the dividend by the monomial divisor
Divide Polynomials (Binomial Divisor)
Factoring Sum and Difference of Cubes
Difference of Squares
DOTS! a^2-b^2
Permutation (Formula)
calculates the # of permutations
Perfect Square Trinomial
Arithmetic Sequence
a sequence of values that has a constant difference between every two consecutive terms
Continuity
a function that is continuous at every point in its domain
Multiple Representations of Functions
functions can be represented through a Table, Words, Equation, or Graph.
Graph of an Inequality
Factor by Grouping
Parent Function: Linear vs. Quadratic
LINEAR: f(x)=x
QUADRATIC: f(x)=x^2
Graphing Linear Inequalities
System of Linear Equations (Number of Solutions)
Mathematical Notation
Greatest Common Factor
get the gcf of all terms of the polynomial and then apply distributive property.
Factors of a Monomial
number(s) and/or variable(s) multiplied to form a monomial
Multiply Binomials
use distributive property!!!!
Multiply Binomials (Model)
use distributive property!!!!!
Multiply Binomials (Graphic Organizer)
apply distributive property!!!!!!
Multiply Binomials (Squaring a Binomial)
Multiply Binomials (Sum and Difference)
Real Numbers
the set of all rational and irrational numbers, including: natural, whole, and integers.