Question

A 160lb person has 4.6 quarts of blood what is the direct variation

Answer 1

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)