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Mathematics, 05.01.2020 19:31 jennlee7178
Which description matches the transformations y=cos x undergoes to produce y=-2cos3x?
a. horizontal compression by factor 3, vertical stretch by factor 2, then reflection across the x-axis.
b. horizontal shift left 2 units, then vertical shift up by 3 units.
c. reflection across the y-axis, vertical shift up by 2 units, horizontal shift right by 3 units.
d. horizontal stretch by factor 2, reflection across the x-axis, then vertical stretch by factor 3.
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Which description matches the transformations y=cos x undergoes to produce y=-2cos3x?
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