Gradient Descent Slope

Hey guys, I have a question. If the slope is negative, then w should increase so that the cost function decrease while if the slope is positive then w should decrease in order to decrease the cost function. Is that what it means? Thanks.

I think this is just another version of the same question which was answered on this other thread you created.

To save anyone else who sees this a couple of jumps through links, the answer is on this thread (please read all my replies on that thread).