Answer:
77
Step-by-step explanation:
just do 500-423
First, make 6 1/3 a improper fraction:

. Now we have 19/3*7/3:

.
Vertex form: y = a(x - h)² + k
h = 2
k = -1
y = 0
x = 5
0 = a(5 - 2)² - 1
0 = 9a - 1
a = 1/9
Answer:
no it doesnt
Step-by-step explanation: