- #1
kuahji
- 394
- 2
The question is "find and simplify the difference quotient."
Given function
f(x)=sq root of x
So what I did is insert (x+h) under the radical & got
sq root of (x+h), then I subtracted the sq root of x (original function)
My answer was sq root [(x+h) - sq root (x)] / h
The answer in the back of the book is 1 / [sq root (x+h) + sq root (x)]
I'm not understanding where I'm going wrong, the other problems didn't give me a problem, just this one.
Given function
f(x)=sq root of x
So what I did is insert (x+h) under the radical & got
sq root of (x+h), then I subtracted the sq root of x (original function)
My answer was sq root [(x+h) - sq root (x)] / h
The answer in the back of the book is 1 / [sq root (x+h) + sq root (x)]
I'm not understanding where I'm going wrong, the other problems didn't give me a problem, just this one.