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chapter 2 review

absolute value function- a function of the form f(x) = |mx+b| + c a function of the form f(x) = |mx+b| + c
dependent variable the value of y depends on the value of x
direct variation A linear function defined by an equation of the form y= kx, where k= 0
domain of a relation is the set of all inputs, or x- coordinates of the ordered pairs
function is a relation in which each element of the domain is paired with exactly one element in the range
function notation f of x
independent variable because the value of y depends on the value of x
linear equation y=3x + 2
linear function A function whose graph is a line
linear inequality is an inequality in two variables whose graph is region of the coordinate plane that is bounded by a line
mapping diagram which links elements of the domain with corresponding elements of the range
parent function is the simplest function with these characteristics
point-slope-function y -- y1 = m(x- x1)
range of the relation is the set of all outputs, or - coordinates of the ordered pairs
reflection in the x- axis changes y- values to their opposites
relation is a set of pairs of input and output values
scatter plot is a graph that relates two different sets of data by plotting the data as ordered pairs
shrink reduces y-values by a factor between 0 and 1
slope of a non vertical line is the ratio of the vertical change to a corresponding horizontal change
Created by: 160311