76.4k views
0 votes
Find the difference quotient of f(x)=x²-2 ; that is find (f(x+h)-f(x))/((x+h-)h) ,. Be sure to simplify.

1 Answer

5 votes

Final answer:

The difference quotient for f(x) = x² - 2 is calculated by finding f(x + h) and subtracting f(x), then dividing by h. The simplified result is 2x + h.

Step-by-step explanation:

The question asks for the calculation of the difference quotient of the function f(x) = x² - 2. This is a common concept in calculus related to the calculation of derivatives. To find the difference quotient, we'll follow the formula given: (f(x + h) - f(x)) / h.

Steps to Calculate the Difference Quotient

First, we'll calculate f(x + h). Here, f(x + h) = (x + h)² - 2.

Expanding the squared term gives us f(x + h) = x² + 2xh + h² - 2.

To find f(x + h) - f(x), we subtract the original function from the expanded function: (x² + 2xh + h² - 2) - (x² - 2).

After simplification, the terms x² and -2 cancel out, leaving us with 2xh + h².

The next step is to divide this expression by h to compute the difference quotient, giving us (2xh + h²) / h.

Finally, when we divide each term by h, we're left with 2x + h.

Thus, the simplified form of the difference quotient for the given function is 2x + h.

User Nick Vanderhoven
by
7.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories