Answer:
The airplane gains speed when it takes off. Then it begins to lose speed at the same rate. The plane then stays at the same speed the rest of the time.
I'll presume the slash is the fraction bar and the questioner is asking about

That always equals 4 except when 
So the restriction is
Answer: a ≠ -3
Answer:
A. x = 4
Step-by-step explanation:
