<span>The shortest path from a starting point to an endpoint, regardless of the path taken, is called the </span>geodesic. In flat (Euclidean) space it is simply a straight line.
X+y = 4, therefore y = 4-x when you rearrange the equation. You can subsitute this in: x-(4-x) = 6 -4+x = 6-x x=10-x 2x = 10 x = 5 Substitute x into the previous equation: 5+y = 4 y = 4-5 y = -1
