By: Camille Omnes 

 each element of the domain is paired with one of the range

the set of all inputs, or x-coordinate, of the ordered pairs

the set of all outputs or y-coordinates of the ordered pairs

two variables is an equation written in the form ax+by=c

 y is the dependent variable  

x is the independent variable

slope of a non-vertical line is a horizontal and a vertical line is undefined 

y-y1+m(x-x1) "m" is the slope of the line and (x1,y1) is a point on the line

y=mx+b m is the slope and b is the y-intercept 

determine if the relation has one element of domain paired with more than one range; if not, it's not a function

point where a line crosses the x-axis

point where a line passes the y-axis