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Arithmetic Sequence

Sequence in which the different between any two consecutive term is the same

Common Difference

Different between any two consecutive terms in an arithmetic sequence

Constant of Variation

Rate of change

constant rate of change

rate of change between any two data points in a linear relationship

dependent variable

variable in a relation with a value that depends on the value of the independent variable

Direct Variable

a special type of linear equation that describes rate of change.

Family of Functions

A set of functions that are related in some way.

Function Notation

A way to name a function that is defined by an equation

Independent Variable

Variable in a function with a value that is subject to choice

line of fit

is a line that is very close to most of the data points

linear equation

is an equation whose graph is a line

linear relationship

Relationships that have straight line graphs

point-slope form

equation of form y-y1=m (x-x1), where m is the slope

rate of change

change in one quantity with respect to another quantity

sequence

an order of a list of numbers, such as, 0,1,2,3 or 2,4,6,8

slope

The ratio of the rise, or vertical change, to the run, or horizontal change. the slope describes the steepness of a line.

slope-intercept form

a linear equation in the form y=mx+b, where m is the slope and b is the y intercept

substitution

use algebraic methods to find an exact solution of a system of equations

system of equations

a set of two or more equations with the same variables.

term

Each number within a sequence.

vertical line test

if any vertical line drawn on the graph of a relation passes through no more than one point on the graph for each value of x in a domain.

x-intercept

the x-coordinate of a point where a graph crosses the x-axis

y-intercept

the y-coordinate of a point where a graph crosses the y-axis