Vertical line test is very simple its like if you graphing a fuction but on the graph a point is the on the same points it is not a function so ike if you have (1,4)and then you graph another pint that is (1,-4) it would not be a fuction
Oh ok that's not hard! What about the domain and range, how can I do that?
Oh ok well the domain and range is two different things. The domain is a complete set of values of the independent variables. The range is the difference between the lowest and the highest number.
ok so what if I want to find the range, how can I find the domain?
The domain is the set of all possible of all possible x values in which the function will work.
So the domain is like the output of numbers
Yes thats right
So do you understand now?
Yeah but when you have a linear relationship between two quantities will it produce a graph with a straight line?