Vertex form of the quadratic function is y = a(x - h)² + k, and the parent function is y = x² . if i went outside and threw a ball into the air what kind of number would the "a" value be? if you threw the ball harder into the air how would that affect the "a" value? how could you change the "k" value?  

This is what i found “an explicit formula designates the nth term of the sequence, as an expression of n (where n = the term's location). it defines the sequence as a formula in terms of n. this example is an arithmetic sequence(the same number, 5, is added to each term to get to the next term).” i hope this you for what your looking for. can you plz mark me brainliest?