Respuesta :

tramserran

Answer:  d) y = -2 sin 2x

Step-by-step explanation:

The general equation of a sin graph is: y = A sin (Bx - C) + D

Compare the given graph with y = sin x

There are 3 differences:

  • the amplitude of the new graph is 2 (A = 2)
  • the given graph is reflected over the x-axis (A is negative)
  • the period changed from 2π to π (B = 2)

So, the equation of the given graph is: y = -2 sin 2x