Answer:
Step-by-step explanation:
[tex]h(1.5) = 20[/tex]
from the graph when t= 1.5 h(t) = 20
[tex]h(8) = 0[/tex]
from the graph when t= 8 h(t) = 0
When the time is at 8 seconds the item hist the ground and therefore the height is zero , and it represents the x-intercept of the graph.