Simplify the following using the Distributive Property: -2(x+10)

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

When only separate discreet points are graphed it is called?

What is the distance between the points (2, 5) and (5,9)?