6.10 function ands their Graphs

linear growth

Growth in which a quantity increases by some fixed amount during each unit of time.

exponential decay

a decrease that follows an exponential function

linear functions

a function whose graph is a nonvertical line or part of a nonvertical line

Vertical

a line test that is used to determine if a graph represents a function

relation

a set of ordered pairs

function

a special type of relation where each value of the independent variable corresponds to a unique value of the dependent variable.

exponential equation

an equation of a graph that increases or decreases

exponentially

increasing or decreasing more and more quickly as time passes

y=ax+b

linear function

range

the resulting set of values

domain

the set of values of the independent variable for which a function is defined

linear decay

when a quantity decreases by the same absolute amount in each unit of time