Answer:
what is the question for the problem
Answer:
(1)
Step-by-step explanation:
We will try:
(1) y =
x => 2 = 2 (seems legit)
(2) y = 4x => 2 = 32 (nope)
(3) y = x - 6 => 2 = 2 (yes but actually no because it is proportional relationship)
(4) y =
x - 2 => 2 = 2 (like the above)
Answer:

Step-by-step explanation:
Given expression:

Let u = (x - y):

To factor a quadratic in the form
find two numbers that multiply to
and sum to
:


Therefore, the numbers are: -6 and -4.
Rewrite
as the sum of these two numbers:

Factor the first two terms and the last two terms separately:

Factor out the common term (u - 2):

Substitute back in u = (x - y):

Simplify:

Answer:
because each output has exactly one input
Answer:
6
Step-by-step explanation: