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Trigonometric Functions — Test Answers

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Angle x is coterminal with angle y If the measure of angle x is greater than the measure of angle ​​​​​​​ y , which statement is true regarding the values of ​​​​​​​​​​​​​​ x and ​​​​​​​​​​​​​​ y ?

A
x is equal to y plus 180 n , for any integer n
B
x is equal to y plus 360 n , for any positive integer n
C
x is equal to y minus 360 n , for any integer n
D
x is equal to y minus 180 n , for any positive integer n
22
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Which transformations are needed to change the parent cosine function to y is equal to 3 cosine open paren 10 times open paren x minus pi close paren close paren ?

A
vertical compression of 3 , horizontal stretch to a period of 10 pi , phase shift of pi units to the right
B
vertical stretch of 3 , horizontal compression to a period of pi over 5 , phase shift of pi units to the left
C
vertical compression of 3 , horizontal stretch to a period of 5 pi , phase shift of pi units to the left
D
vertical stretch of 3 , horizontal compression to a period of pi over 5 , phase shift of pi units to the right
23

Which expression finds the measure of an angle that is coterminal with a 300 degrees angle?

A
300 degrees minus 840 degrees
B
300 degrees minus 860 degrees
C
300 degrees minus 720 degrees
D
300 degrees minus 740 degrees
25

The graph of which function passes through open paren 0 comma 4 close paren and has a minimum value at open paren 3 pi over 2 comma 3 close paren ?

A
f of x is equal to 4 cosine x
B
f of x is equal to negative 3 sine x
C
f of x is equal to sine of x plus 4
D
f of x is equal to cosine of x plus 3

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