Posted by Jennifer on Thursday, April 22, 2010 at 4:57pm.
Describe the end behavior and estimate the xand yintercepts for each function. Estimate to the nearest tenth when necessary.
y=2x^5+x^3

Math  Reiny, Thursday, April 22, 2010 at 6:04pm
no estimation needed for yintercept, let x=0 then y = 0
for xintercept, let y = 0
2x^5 + x^3 = 0
x^3(2x^1 + 1) = 0
x = 0 or x^2 = 1/2
so x = ±1/√2
as x > +big, y >  big
as x >  big, y > +big
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