Given equation is 
To find the x coordinate of vertex we use formula

From the given equation a= 2, b= 8 and c= -5
Plug in all the values

The x coordinate of vertex is x=-2
To find y coordinate of vertex we plug in -2 for x in the given equation


So vertex is (-2,-13)
Answer:
O/3
Step-by-step explanation:
The answer is "The volumes of the two vases are equal"
This is because you do
12x3=36, 36/2=18 (divide by two because the radius is half)
6x6=36, 36/2= 18
18=18
Answer:
x = -2/9
Step-by-step explanation:
27x = 9x − 4
Subtract 9x from each side
27x-9x = 9x-9x − 4
18x = -4
Divide each side by 18
18x/18 = -4/18
x = -4/18
Divide the top and bottom by 2
x = -2/9
Answer:
No it is not a function.
Step-by-step explanation:
Hope it helped!