Proportional & Non-Proportional Vocabulary

a relationship or expression involving one or more variables

• function

• input/output

• mappings

• linear

a uniform rate which involves something travelling at fixed and steady pace

• constant of proportionality (k)

• constant rate of change

• non-proportional

• proportional

what goes into a function, independent variable

• output

• dependent variable

• input

• proportional

what comes out of a function, the dependent variable

• non-proportional

• independent variable

• input

• output

two numbers written in a certain order: (x, y)

• ordered pair

• mappings

• independent variable

• dependent variable

pairing each member of the domain with each member of the range

• slope intercept form

• mapping

• coefficient

• constant of proportionality

equality between two ratios

• linear

• coefficient

• proportionality

• non-proportionality

a function whose graph is a straight line

• non-proportional

• coefficient

• slope intercept form

• linear

a variable that is independent of the other variables in an expression or function and whose value determines one or more of the values of the other variables

• independent variable

• dependent variable

• output

• coefficient

a variable whose value depends upon the independent variable

• independent variable

• dependent variable

• input

• y-intercept