Biggg facts♡♡♡♡lm. aoo

When only separate discreet points are graphed it is called?

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).