introduction to domain and range
in order to find the domain and range you should find x,y
domain (mathematics) the set of values of the independent variable for which a function is defined.
range-is the [y value the function of the set of values of the dependent variable
fuction- relatinfor which each value from the set the first components of the ordered pairs is associated with exactly one value from the set of a second component of the ordered pair.
boundaries-border that enclose a space or an area
inequility- value are not equal