Posted by Math is TOUGH on Monday, November 15, 2010 at 5:12pm.
Which of the following describes the end behavior of the graph of the function
f(x) = –x6 – 3x4 + 7x – 5?
a. downward to the left and upward to the right
b.upward to the left and downward to the right
c.downward to the left and downward to the right
d.upward to the left and upward to the right

algebra  Reiny, Monday, November 15, 2010 at 5:42pm
for large ± numbers the first term , x^6 ,
is the "dominating" term, the other terms become more and more insignifant.
try a large positive + number,
e.g. x = 100
x^6 = 1000000000000
x = 100
x^6 = 1000000000000
so what do you think happens at both ends?

algebra  unknown, Tuesday, March 29, 2011 at 9:30pm
something
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