Answer:
vertex = ( -6 , -3 )
focus = 
axis of symmetry = y = -3
directrix = x = 
GRAPH :
It is 10.1. Please mark me as brainliest if this helped!
You have to combine like terms, so 3b plus 2b equals 5b and you can't add b to 5a because they aren't defined, therefore th answer is 5a+b.
Step-by-step explanation:
THANKS!! FOR THE POINTS