Evaluating a limit by rationalizing the radical

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Mathematics, Business
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11th Grade - University
•
Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step to consider when evaluating limits?
Graphing the function
Direct substitution
Using a table
Factoring
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When direct substitution and factoring are not possible, what should you consider next?
Changing the variable
Ignoring the problem
Simplifying the expression
Using a calculator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of multiplying by the conjugate when dealing with radicals?
To make the expression more complex
To increase the value of the expression
To eliminate the radical
To change the sign of the expression
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the given problem, what happens to the terms X + 1 and -1?
They cancel each other out
They add to zero
They remain unchanged
They multiply to give a larger number
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After simplifying the expression, what is the final step to find the limit?
Graph the function
Use a table
Apply direct substitution
Factor the expression
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