9 - c = -13
-c = -13 - 9
-c = - 22
c = 22 <===
The vertex is (-1, 2).
The equation of parabola:
where (h, k) is the vertex
We have h = -1 and k = 2.
Substitute:

Answer:
-50
Step-by-step explanation:
b-5 
b-5 = -45 ( collect like terms)
b = -45 + -5
b = -45 -5 b = -50
Answer:
Here is yours.
But next time, pls give it a try,bro!
Good luck!
Answer:
commutative property is C+2+0=C+2
(As a+b=b+a is the law of commutative property of addition )