Linear Relationships & Functions, Unit 2

a relationship between 2 quantities in which the ratio of 1 quantity to the other quantity is constant

• unit rate

• constant of proportionality

• proportional relationship

• slope

a measure of the steepness and direction of a line on a graph; the rise divided by the run

• slope

• unit rate

• proportional relationship

• constant of proportionality

a rate in which the 2nd quantity in the comparison is 1 unit

• proportional relationship

• slope

• unit rate

• constant of proportionality

A proportional relationship can be described by an equation of the form y=kx, where k is a number called the......

• slope

• unit rate

• proportional relatonship

• constant of proportionality

a ratio of the amount of change in the dependent variable, or output, to the amount of change in the independent variable, or input

• unit rate

• rate of change

• proportional relationship

• nonproportional relationship

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

• x-intercept

• y-intercept

• slope

• origin

an equation whose solutions form a straight line on a coordinate plane

• slope

• y-intercept

• linear equation

• ordered pair

a linear equation written in the form y=mx+b

• slope

• y-intercept

• slope-intercept form

• rate of change

an input-output relationship that has exactly 1 output for each input

• function

• proportional relationship

• nonproportional relationship

• constant of proportionality

a function whose graph is a straight line

• nonlinear function

• linear function

• exponential function

• scatter plot