Horizontal Shrink: y = cos 2x or if the coefficient of x is greater than 1 Vertical Stretch: y = 2 cos x or if the coefficient if cos x is greater than 1 Horizontal Stretch: y = cos (1/2) x or if the coefficient of x is less than 1 Vertical Shrink: y = (1/2) cos x or the coefficient of cos x is less than 1
The base value is 1 since it is the original coefficient of x and cos x. The values would adjust depending on the original coefficients.
