Suppose that a quadratic fit to a position plot yields the

Question

Solve the all parts of given question:

Question: Suppose that a quadratic fit to a position plot yields the following fit result: y=4.97x^2+1.53x+).0503. From this fit result:

Part I: Determine the acceleration due to gravity of the particle?

Part II: Determine the initial velocity of the particle?

Please also explain, thank you in advance.