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March 29, 2015

March 29, 2015

Posted by **sara** on Wednesday, March 26, 2008 at 9:12pm.

h is not equal to 0

f(x)=7x-9

f(x+h)-f(x)/h=

7(x+h)-9-(7x-9)/h=

7x+7h-9-7x+9/h=

7h/h=

7

- algebra -
**bobpursley**, Wednesday, March 26, 2008 at 9:17pmIt is correct. I assume you are supposed to be doing limits, but in this case limitof h/h as h approaches zero is 1.

- algebra -
**Anonymous**, Wednesday, March 26, 2008 at 9:41pmThank-you.

- algebra -

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