Evaluate the right hand limit of a rational function with a radical

The video tutorial explains how to choose values larger than 9 and discusses the concept of limits as X approaches 9 from the right. It highlights the importance of understanding square roots and their approximations, emphasizing that the square root of a number slightly larger than 9 is not significantly larger than 3. The tutorial also covers the positivity of results when dealing with limits and stresses the importance of consistently using limit notation in mathematical work.

What is the significance of choosing values larger than 9 in the context of limits?

• It leads to a positive result.

• It ensures the result is negative.

• It helps in understanding negative infinity.

• It is irrelevant to the calculation.

Why is the limit as X approaches 9 from the right considered positive infinity?

• Because the result is negative.

• Because the result is zero.

• Because the result is undefined.

• Because the result is positive.

What is the importance of using limit notation consistently?

• It is only required in exams.

• It is only important for complex calculations.

• It helps in maintaining clarity and accuracy.

• It is not necessary for simple problems.