y2=4(x−1)y^{2}=4(x-1)y2=4(x−1)
y2=6(x−2)y^{2}=6(x-2)y2=6(x−2)
y2=4(x−3)y^{2}=4(x-3)y2=4(x−3)
y2=12(x−1)y^{2}=12(x-1)y2=12(x−1)
