Draw the image after the translation describes by the rule (x, y)--> (x+1,y-4)

Me, prove a quadrilateral with vertices g(1,-1), h(5,1), i(4,3) and j(0,1) is a rectangle using the parallelogram method and a rectangle method.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2