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What is the answer to this polynomial expression question?
For the polynomial:
f(x) = -2x^3 - 2x^2 + 7x - 25
as
x ---> - ∞ f(x) ------> ∞
a) true
b) false
1 Answer
Relevance
- llafferLv 76 months agoFavorite Answer
Look at the first term:
-2x³
As x is infinately negative, x³ will continue to be negative.
Multiply that by -2 and now it's positive.
So the limit of f(x) as x approaches negative infinity would be positive infinity.
So that statement is true.
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