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Select the correct statements in the passage.
Hillary's teacher asked her to write a description of the transformations to the parent cosine function that would result in this function.
h(x) = -3cos(21 – 7) + 4
Which statements in her description are true about function h?
To create the graph of function h, the graph of the parent function is horizontally compressed by a factor of 2. Then it undergoes a phase shift left 2 units. Next it is
rof.
vertically compressed by a factor of -3 and vertically shifted up 4 units
The period of function h is half the period of the parent function, and it has an amplitude 3 units greater than that of the parent function
