Answer:
-3 + -6= -9
because there is answer given
For this case we have the following equation:

Deriving we have:

We match zero:

We clear the value of x:

Then, we substitute the value of x in the equation of the parabola:

Thus, the vertex of the parabola is the ordered pair:
Answer:
The vertice is:
I believe it's 199,000 to the nearest 1,000 and
200,000 to the nearest 10,000
Answer: 20 ;)
Step-by-step explanation: