Trigonometry
Which of the following statements correctly describes the procedure for obtaining the graph of y = -12 sin x from the graph of y = sin x?
Stretch the graph of y = sin x vertically by a factor of 12 and reflect it across the y-axis.
Stretch the graph of y = sin x vertically by a factor of 12 and reflect it across the x-axis.
Compress the graph of y = sin x vertically by a factor of 12 and reflect it across the x-axis.
Translate the graph of y = sin x by 12 units to the left.