The TI-Calculator output for this example would look like:
  y = a + bx
  a = 872.4103412
  b = -0.3312010656
  $\displaystyle {r}^{{2}}$  = 0.8861230253
  r  = -.9413410781

Give the equation for this new line and compare it with the line you found for the whole dataset, commenting on the effect of the outlier.