How can using properties you to simplify expressions?

Find the slope of a line given the following two points

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Atriangle has verticals at b(-3,0), c(2,-1), d(-1,2). which transformation would produce an image with verticals b”(-2,1), c”(3,2), d”(0,-1)?