Asap i dont understand
what is the slope of a line perpendicular to line a

Guests at an amusement park must be at least 54 inches tall to be able to ride the roller coaster. which graph represents the set of heights that satisfy this requirement?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Find the interior angle of a regular polygon which has 6 sides