For the graph of the function y = - Vx + 5+ 6 to undergo a vertical stretch by a factor of 3, followed by a reflection across the x-axis, the equation of the transformed function would be: Select one: O a y = 3vx + 5 - 18 ob y= 3vx +5+6 O c. y= vx +5+6 o d. y=3vx +5+18