This video explains how to find the sign of slope of a line. The way shown means that you can find whether it is positive or negative without knowing its equation. It uses a simple analogy so that anyone would be able to use this method, even without much math knowledge. Being able to find the slope of a line is very important, as it leads to advanced function and calculus.
Just updated your iPhone to iOS 18? You'll find a ton of hot new features for some of your most-used Apple apps. Dive in and see for yourself:
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