anonymous 4 years ago Find the derivative of the function using the definition of derivative. g(x) = sqroot8 − x g'(x) =

1. zepdrix

|dw:1349647355572:dw| Were you able to get the limit set up correctly? :)

2. anonymous

$\left(\begin{matrix}-2x \\ \sqrt{8-(x+h)}+\sqrt{8-x}\end{matrix}\right)$

3. zepdrix

|dw:1349647905952:dw|

4. anonymous

dont you have to cancel out the h

5. zepdrix

yes from this step you can cancel the h's, since it's the only term in the top. I'm not sure how you did it in your problem as you had it before though, You would've had to divide an h out of the -2x, and you didn't have one in there. D:

6. anonymous

couldn't i put -1 on the top

7. zepdrix

|dw:1349648375393:dw| Yes, good :)

8. anonymous

thank you :)

9. zepdrix

\c:/