Question

@michele_laino

Answer 1

@TheSmartOne

Answer 2

@Michele_Laino

Answer 3

I think it's A or B.

Answer 4

both functions assume the same value when the subsequent condition holds:
\[\frac{1}{{2{x_1}}} = \frac{1}{{{x_2}}}\]
which is equivalent to this one:
\(2x_1=x_2\)
so, what can you conclude?

Answer 5

hint:
from the first equation, we can consider \(1/2\) as a stretching factor