Transformations of sinusoidal functions con't

Corrected work on sinusiodal functions from Thursday. In addition:

create a Table of Values and sketch:

1/2 (y+1) = cosx
1/2 (y-1) = sinx
y + 0.57 = sinx
y + 0.15 = cosx
1/5 (y + 4) = sinx
1/3 (y - 4) = cosx

then do:

p.144 #31a,b,d

You may see a relationship between the answers from these sketches and your solutions to these questions ....

(how cryptic!)