Answer:
which grade u r in I'm in 10th grade and Indian
Answer: Seven hundred thirteen point forty-nine.
Step-by-step explanation: Hope this helps ;)
First we have to find the vertex (h,k) h is also x and it also is the a xis symmetry
1st: group the number
(X2+6x)-9
2nd: use b/2
6/2 = 3 , 3^2= 9
(X2+6x+9)-9-9
(X2 + 3)-18
Vertex is 3,-18 so the symmetry is 3
Answer: the answer is 2x-1