SOLUTION: Are the functions continuous? Determine whether f is continuous at c. Use algebraic substitution, graphing, and or tables to determine. 3. f(x) = (x+3)/(x-3), c = 3 4.

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Question 1139411: Are the functions continuous?
Determine whether f is continuous at c. Use algebraic substitution, graphing, and or tables to determine.
3. f(x) = (x+3)/(x-3), c = 3

4. f(x) = (x^2 + 3x)/(x^2 - 3x), c = 0
I think they are both not continuous but im not sure.

Answer by MathLover1(20850)   (Show Source): You can put this solution on YOUR website!

3. ,
if is of the given value for
->
4. ,
->
In both examples 3. and 4. if is of the given value for , the DENOMINATOR of the function becomes ZERO which is undefined. Thus the function has a 'hole ' there and is continuous.

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