IF YOU SUBTRACT THE TWO EQUATIONS, THE XTERMSALL OF THE SOLUTIONS T...

2. If you subtract the two equations, the xtermsAll of the solutions to f(x) are collectively calledwill be eliminated, leaving only one variable:the range. Values that f(x) cannot equal are said to beSubtract:outside of the range.x– 2y= 9The xvalues are known as the independent vari-–(x– 5y= 3) ables. The outcome of the function dependson the xval-

y

=

⁶

₃

ues, so the yvalues are called the dependent variables.

3

3

y= 2 is the answer.Qualitative Behavior of Graphs