We will have the following:
*First: We will solve the function for either x or y:
[tex]\Rightarrow x-32+y+72=64\Rightarrow x+40+y=64[/tex][tex]\Rightarrow x+y=24\Rightarrow y=-x+24[/tex]*Second: We can see that the equation results in a linear equation.
Using the y-intercept we can deduce that the origin of the source is 24 units to the "north" of the axis.
And using the x-intercept we can dedude that the apparent range is also 24 units.