thru (4,0) parallel to y=1/2x+5
paralell has same slopey=mx+bm=slopey=1/2x+bfind b(x,y)(4,0)x=4y=00=1/2(4)+b0=2+bminus 2 both sides-2=bthe equaiton is y=1/2x-2orx-2y=4