Glencoe Course 3 Chapter 3 Vocabulary

constant of proportionality

• parts of congruent figures that match

• the rate of change between points

• the constant ratio in a proportional linear relationship

• the ratios in a non-linear equation

constant of variation

• a constant ratio in a direct variation

• a convenience sample

• The constant intercept

• lines that lie in the same plane

constant rate of change

• an object made up of changes that remain constant

• an event that changes at an inconsisten rate

• the rate of change between any two points in a linear relationship is the same or constant

• data that can take on any value

The slope of a line can always be calculated with a ratio of the run over the rise

• True

• False

A way to write an equation with two variables that is y = mx + b, where m is the slope and b is the y-intercept

• Substitution

• Standard form

• slope-intercept form

• Direct variation

An equation written in the form Ax + By = C

• Slope/Intercept Form

• Systems of Equtions

• Constant of Variation

• Standard Form

A constant ratio in a direct variation

• Point-Slope Form

• Standard form

• Constant of Variation

• Difference in Y-values

A relationship between two variable quantities with a constant ratio

• Direct Variation

• Indirect Variation

• Variable Slope

• Systems of Equations

Where the Graph of a line crosses the X-axis

• Rise

• Y-Intercet

• X-intercept

• Run

Where the line crosses the Y-axis

• Y-intercept

• X-intercept

• rise

• run