Y– x – 4 = 0. what is the equation written in function notation

Of four points are collinear, they are also coplanar

Which graph represents the parent function of y=(x+2)(x-2)

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.