Answer:
2i and -2i
Step-by-step explanation:
I'll change u to x to be easier to understand.
x^2 = -4
sqrt(x^2) = sqrt(-4)
sqrt(-4) = 2i, or -2i
I assume you meant
.
Reflecting across the x-axis would give
.
Reflecting across the y-axis would give
.
The final stock price is $48.54
The correct answer is D. 11.1