Can someone help me with question one ? please ! thank you !

1. Find the equation of a quartic (degree 4) polynomial Whose graph is symmetric about the yaxis and has local maxima at (- 1,4) and (1,4) and a yintercept of 2. 2. The volume of a tree is given by 1 V = 1271C2 h where C is the circumference of the tree in meters at ground leve and h is the height of the tree in meters. (Notice both C and It will change as the tree ages.) (a) Find a formula for %. What does it represent in practical terms