Answer:
2. X-intercept is 30
3. Y-intercept is 255
4. How long it took for elevator to go down.
5. How high up the elevator started.
I will let you do the rest ;)
D = 0
Step-by-step explanation:
D = b^2 - 4ac =
= 6^2 - (4*1*9) =
= 36 - 36 = 0
I'm not sure but I think its 10
.