
Challenge Questions:
 This equation doesn't give us our circle in our new geometry. What is the equation for this SchoolBus Geometry circle?
x + y = 4 or y = + (4  x)
 If the graph of x^{2} + y^{2} = r^{2} is not a circle in this geometry, what would its graph look like?
There would only be four points on the graph. Those on the axes.
