# Math Help - Variables in Average Rate of Change?

1. ## Variables in Average Rate of Change?

(5(x + h) - 4) - (5(x) - 4)/x + h - x

What do I do after that? Do I continue with this?

(5(x + h) - 4) - 5(x) + 4/h
after..

5x + 5h - 4 - 5(x) + 4/h

5h/h

2. What you have done is correct. To make sure, what is the rate of change of $y=5x-4$? Its the slope! 5!!!!!!!

3. Originally Posted by nox16
(5(x + h) - 4) - (5(x) - 4)/x + h - x

What do I do after that? Do I continue with this?

(5(x + h) - 4) - 5(x) + 4/h
after..

5x + 5h - 4 - 5(x) + 4/h

5h/h
Yes, I think you got the answer (5).

4. Thank you so much for confirming me with that. The answer in the back is 5, but I wasn't not quite sure if the way I was doing is correct. Thanks for help me out guys!