The right answer is not among those offered. The domain is
.. {-9, -6, 4, 7}
___
The 4th selection {4, 7} is the best of those offered, but it is not correct.
The answer is c I hope it helps
For this, just plug in 1.5 into the x variable of this function and solve as such:

<u>The height of the object was at 76 ft.</u>
(3x2-9) + (2x+9) =X
This is how you put the equation together