You can tell based off the translation of graphs.
Vertical:
y=f(x) + k : graph shifts k units up
y=f(x) - k : graph shifts k units down
Horizontal:
y=f(x - k) : graph shifts k units right
y= f(x+k) : graph shifts k units left
Http://www.mathskey.com/question2answer/32620/surface-area-and-volume-please-help-me
The answer would be 20,000ft2
See the attachment
Hope this helps.