Posted by Tammie on Thursday, July 23, 2009 at 8:23pm.
For f(x) = x^3 – 4x – 7, use the Intermediate Value Theorem to determine which interval
must contain a zero of f.
A. Between 0 and 1
B. Between 1 and 2
C. Between 2 and 3
D. Between 3 and 4
I am leaning towards Choice A. What does everyone think? I would appreciate some feed back! Thanks!

Algebra  drwls, Thursday, July 23, 2009 at 8:37pm
Calculate f(x) at 0,1,2,3 and 4 and see where it changes sign. That will be the answer. There must be a zero of f(x) in that interval, since it is an intermediate value.
By the way, your choice is wrong. f(x) is negative in interval A.

Algebra  Tammie, Thursday, July 23, 2009 at 8:53pm
Ok I am trying to figure this out. If A is wrong then my next choice was
C. Between 2 and 3 Is this correct?

Algebra  MathMate, Friday, July 24, 2009 at 12:33am
Assuming C is correct, could you explain based on what you made this choice?
Answer This Question
Related Questions
 Algebra  For f(x) = x^3 – 4x – 7, use the Intermediate Value Theorem to ...
 Algebra  For f (x) = x4 – 2x2 – 7, use the Intermediate Value Theorem to ...
 Algebra  For f(x) = x^3 – 4x – 7, use the Intermediate Value Theorem to ...
 Algebraplease check my work  check my answers please. Use the Intermediate ...
 Math Calculus  The Image Theorem: The image theorem, a corollary of the ...
 College Algebra  1. Use the Intermediate Value Theorem to show that the ...
 college algebra  Use the intermediate value theorem to determine whether the ...
 intermediate value thorem  Use intermediate value theorem to show that the ...
 Use the intermediate value  Use the intermediate value theorem to show that the...
 Use the intermediate value  Use the intermediate value theorem to show that the...
More Related Questions