How to find the difference quotient and simplify the answer

Simplifying further, we get:\frac{1}{t}-1And since the denominator is the same as the original function, we can simplify to:-\frac{1}{t}Therefore, the difference quotient is -1/t, t doesn't equal 1.In summary, the difference quotient for f(t)=1/t is -1/t, when t doesn't equal 1.
  • #1
Ray 4
3
0

Homework Statement



find the difference quotient and simply your answer.

f(t)=1/t, [f(t)-f(1)]/t-1, t doesn't equal 1


Homework Equations


the book says the answer is -1/t, t doesn't equal 1


The Attempt at a Solution



(1/t-1)/t-1

(1/t-t/t)/t-1

(-1t/t)/t-1

-1/t-1


thanks!
 
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  • #2
Ray 4 said:

Homework Statement



find the difference quotient and simply your answer.

f(t)=1/t, [f(t)-f(1)]/t-1, t doesn't equal 1


Homework Equations


the book says the answer is -1/t, t doesn't equal 1


The Attempt at a Solution



(1/t-1)/t-1

(1/t-t/t)/t-1

(-1t/t)/t-1

-1/t-1


thanks!

How did you get that line?
 
  • #3
danago said:
How did you get that line?

i thought that's what you get when you minus t/t from 1/t
 
  • #4
Nope, you get:

[tex]\frac{1-t}{t}[/tex]

instead of:

[tex]\frac{-t}{t}[/tex]
 

1. What is the formula for finding the difference quotient?

The formula for finding the difference quotient is (f(x+h) - f(x)) / h, where h is the change in the x-value and f(x) is the original function.

2. How do I simplify the difference quotient?

To simplify the difference quotient, you can start by expanding the numerator and simplifying any like terms. Then, you can factor out the h in the denominator and cancel out any common factors between the numerator and denominator.

3. Can I use the difference quotient to find the slope of a curve?

Yes, the difference quotient can be used to find the slope of a curve at a specific point on the curve. However, as h approaches 0, the difference quotient becomes the derivative of the function.

4. What is the significance of finding the difference quotient?

Finding the difference quotient allows us to approximate the slope of a curve at a specific point. This can be useful in many applications, such as calculating instantaneous velocity or acceleration in physics.

5. Are there any limitations to using the difference quotient?

One limitation of using the difference quotient is that it only gives us an approximation of the slope at a specific point. To find the exact slope, we would need to take the limit as h approaches 0, which can be computationally challenging for more complex functions.

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