=3y+c ⇒x=3y2+cy‌‌.........(i) Curve passing through the point (1,1) ⇒1=3+c ∴c=−2 Put the value of c in equation 1 st we get, ⇒x=3y2−2y Checking from options: This equation is satisfied by point (−1∕3,1∕3) Hence option 3 is correct.