A picture is worth a thousand words

an expression involving one ore more variables

domain is the set of x-values / Range is the set of y-values

X-intercept is the x-axis & Y-intercept is the y-axis

Y (dependent) depends on what you put in for the independent vairbale

An equation between two variables that gives a straight line on a graph

RISE OVER RUN

y value of the known point on the line, m=slope, x=point

the equation of a straight line in the form, m=slope b=y-intercept 

visual way to determine if a curve is a graph of a function or not