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April 21, 2015

Homework Help: Calculus

Posted by Maura on Tuesday, February 5, 2013 at 10:54pm.

Explain, using the theorems, why the function is continuous at every number in its domain.

F(x)= 2x^2-x-3 / x^2 +9

A) F(x) is a polynomial, so it is continuous at every number in its domain.
B) F(x) is a rational function, so it is continuous at every number in its domain.
C) F(x) is a composition of functions that are continuous for all real numbers, so it is continuous at every number in its domain.
D) F(x) is not continuous at every number in its domain.
E) none of these

State the domain. (Enter your answer using interval notation.)

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