Question

MEDAL IF SOLVED!!!!!!!!!!!!!!!!!



which description matches the transformations y=cosx undergoes to produce y=-2cos3x

A. Horizontal compression by factor 1/3, vertical stretch by factor 2, then a reflection through the x-axis

B. Horizontal stretch by factor 2, reflection through the x-axis, then vertical stretch by factor 3

C. Reflection through the y-axis, vertical shift of 2 units, horizontal shift right by 3 units

D. Horizontal shift left 2 units, then vertical shift up by 3 units

Answer 1

I think its A. but not sure yet

Answer 2

ok well take your time aha

Answer 3

definitely A.