Answer
The Amplitude is $ 2$
The Period is $ 1 $
See graph below
Work Step by Step
For
$y=a\sin c(x−h) + k$ $y =a \cos c(x−h) + k$,
Amplitude: $|a|$, Period: $\frac{2\pi} {|c|}$,
Given $y = -2 \sin (2 \pi x)$
The Amplitude is $|-2| = 2$
The Period is $\frac{2\pi}{|2\pi|} = 1$
The transformations are as follows
The blue graph represents the graph of $\sin x$
The red graph represents the graph of the given function that is reflected about the x-axis, compressed horizontally by a factor of $ 2\pi$ and stretched vertically by a factor of $2$
See graph below.