Question

how to Tell if the slope is positive, negative, zero, or no slope?

Answer 1

http://www.thefreemathtutor.com/positivenegativezeroandundefinedslopesex.html

Answer 2

take a look at that :)

Answer 3

take a look at that :)

Answer 4

Differentiate the function, plug in points. Not sure at what level you're asking this question.

Answer 5

Most likely the answer above will be what you're looking for.