Answer: A
Step-by-step explanation:
Letting
,

Also, the domain of an inverse is the same as the range of the original function, so the range is 
Answer:
The best way to know weather the formula y=x⁴-4x³+3x² is growing or not, is by graphing it.
As you can see in the attached picture:
- For -inf<x< 0 the graph decreases.
- For 0<x<0.634 the graph is growing
- For 0,634<x<2.366 the graph decreases
- For 2.366<x<+inf the graph is growing.
Therefore, the polynomial grows in the intervals stated before.
X^2 = 1994
x= + - sqrt (1994)
Unfortunately, there is no integer that can suit x.