Respuesta :

sqdancefan
Part 1
The slope is
  (change in y)/(change in x) = (1-0)/(2-2) = 1/0

Part 2
  The value of 1/0 is "undefined" so there is no way to carry out the arithmetic involved in the traditional version of the point-slope equation.
  y -0 = (1/0)(x -2)