I NEED HELP PLEASE, THANKS! :)

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.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

What is the factor form of x^2-9x+14