The first number but it doesn't really matter.
-3 because if you add -3 to 3 you get 0
It opens up
axis of symmetry is x=1
vertex is 1,0
x intercepts is -1,0,1,2,3,
y intercepts is 4, 1,0,1,4
Answer:
A= 429
B= 50
Explanation:
A+B= 479 (take away)
A-B= 379
A-A+B+B= 479-379 (simplify)
2B= 100
I think you know how to do it now..
B=50
A=50+379 ---> 429
This is the substitution method, there are other ways of doing it- and I tried to make this simple. Hope this helped!
