1.what happens to T when h is doubled in the equation T=4h?
A.doubled B.halved C.tripled D.becomes 0
2.what happens to y when x is tripled in the relation y=k/x?
a.tripled b.doubled c.halved d.divided by 3
3.if y varies directly as the square of x,how is y changed if x is increased by 20%?