Answer:
The vertex is the point 
Step-by-step explanation:
we have

we know ow that
The equation of a vertical parabola into vertex form is equal to

where
(h,k) is the vertex of the parabola
Convert the equation into vertex form
Group terms that contain the same variable, and move the constant to the opposite side of the equation

Factor the leading coefficient

Complete the square. Remember to balance the equation by adding the same constants to each side


Rewrite as perfect squares

therefore
the vertex is the point 
Answer:
162 passengers
Step-by-step explanation:
A roller coaster can take 162 passengers around the track in 9 minutes. The roller coaster operates at a constant rate.
906 grams.
1000-94=906 grams
if asking for hours to miles (as it looks like in this case, x to y) it would be 1/53
You find area by multiplying base and height.
The formula is A=bh
so 100=25h
25 times 4 is 100
100=25*4
4cm is your answer