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Complete the table below by filling in the blank spaces.
Using the scale 1 cm to represent #30^0# on the horizontal axis and 4 cm to represent 1 unit on the vertical axis, on the grid provided, draw the graph of y=cos#x^0# and y=2cos#1/2 x^0# on the same axis.
(a) Find the period and the amplitude of y=2 cos #1/2 x^0#
(b) Describe the transformation that maps the graph of y= cos #x^0# on the graph of y=2cos#1/2 x^0#