Does each relation reprsent a fuction? choose yes or no 1.(1,3), (2,5), (2,7), (4,9) yes or no
2.(1,3), (2,5), (3,7), (4,9) yes or no
3.(1,3), (1,5), (1,7), (1,9) yes or no
4.(1,3), (2,3), (3,3), (4,3) yes or no

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.

Afunction is given: f(x)=3x+12 a. determine the inverse of this function and name it g(x) b. use composite functions to show that these functions are inverses. c. f(g(– explain: what is the domain?

Find the coordinates of point x that lies along the directed line segment from y(-8, 8) to t(-15, -13) and partitions the segment in the ratio of 5: 2.