Math question.. path of a projectile. HELP?

The path of a projectile can be modeled by the relation, y=-4.9t^2+vt+h where h is the projectile’s initial height in feet and v is the projectile's initial velocity, in feet per second. Rewrite the equation, y= -4.9(t-4)^2+120 in standard form and state the initial height and initial velocity of the toy rocket.