Computer Graphics
Homework 02.04

Implicit curve (dimension = 2, degree = 1)
Consider the 1st degree polynomial f(x, y) = a00 + a10 x + a01 y which is zero at the points
  (x0, y0)     (x1, y1) 
Write the equation for the function f().

f(x, y) =
The implicit curves f(x, y) = 0 and f(x, y) = df are parallel, separated by distance r. How far apart are they?

r =