Answer:
Associative Property
Step-by-step explanation:
The brackets moved, so it would be associative
Answer:
(-∞,4)
Step-by-step explanation:
the value is going down from the right until it reaches the vertex
Answer:
and 
Step-by-step explanation:
n is a number.
a number squared is 
27 more than a number squared is 
n is a number.
three times a number is 3 times n, or 
one less than that is 
Hope this answer helped! :)
Answer:
Because you can't divide by zero.
Step-by-step explanation:
If x = -2, it makes the denominator 0. This will result in the equation being undefined because you can't have zero in the denominator.