so weight=x
blood=y
we got that when
y=kx
when y=4.6, then x=160
4.6=160k
divide both sides by 160
0.02875=k
the direct variation is
y=0.02875x
so plug in x and get y
the answers in (x,y) form is
(0,0)
(50,1.4375)
(75,2.15625)
(100,2.875)
(125,3.59375)
(150,4.3125)
