Answer:
(a) At 1.5 seconds, the ball is 15ft high
Step-by-step explanation:
Given
[tex]Fence:= 20ft[/tex]
[tex]h(t) := -16t^2 + 30t + 6[/tex]
Required
Select the true statement
See attachment for options
Option (a): At 1.5 seconds, the ball is 15ft high
This implies that:
[tex]t = 1.5[/tex]
Substitute [tex]t = 1.5[/tex] in [tex]h(t) := -16t^2 + 30t + 6[/tex]
[tex]h(1.5) = -16 * 1.5^2 + 30 * 1.5 + 6[/tex]
[tex]h(1.5) = -16 * 2.25 + 45 + 6[/tex]
[tex]h(1.5) = -36 + 45 + 6[/tex]
[tex]h(1.5) = 15[/tex]
This statement is true.
Because: [tex]h(1.5) = 15[/tex] means that:
At 1.5 seconds, the ball is 15ft high
Other options will not be checked because only one option can be correct