Find the amplitude, the period in radians, the phase shift in radians, and the vertical shift. Then sketch the graph using radians. No computer graphs - sketches need to be on graph paper with properly labeled axes. \text { 1) } y=-2+\frac{1}{2} \cdot \cos \left(3 \theta+\frac{3 \pi}{4}\right) \text { 2) } y=2 \sin \left(\frac{\theta}{2}+\frac{2 \pi}{3}\right)-1 \text { 3) } y=3 \sin \left(3 \theta+\frac{\pi}{2}\right)+1 \text { 4) } y=\frac{1}{2} \cdot \cos \left(3 \theta+\frac{\pi}{6}\right)-1

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