ASSUMPTION: Since we are talking about fractions it looks like you have to simplify it. Again, its still a guess so Id assume..
16/12 = 4/3.. So It should be <em>h = 2 </em>
The x-coord. of the vertex is halfway between the given zeros. Here, it'd be halfway between x=3 and x=9, which comes out to x = 6 (answer).
Answer:
mid point: (4,5)
hope that helps :)
Step-by-step explanation: