How to find a percent of a number

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Given f(t) = 282 - 53 +1, determine the function value f(2). do not include f(z) = in your answer

Which equation matches the graph shown ?