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October 21, 2016
Posted by **CheezyReezy** on Wednesday, June 1, 2011 at 9:02pm.

f(x) = 3x^3 + 8x^2 - 5x - 11; [-2.8, -2.7]

I'm not understanding all this questions...

- Math -
**Mgraph**, Wednesday, June 1, 2011 at 9:44pmIf the function f(x) is continuous on

[a,b] and f(a)*f(b)<0 then on (a,b) there

are at least one zero. Polynomial is

continuous on R.

Compute f(-2.8) and f(-2.7)