Asked by yeahyeah
13. What is the equation of a cosine function with amplitude 3, transition point (−1, 1), and period p?
A. y = p cos [3(x − 1)] − 1
B. y = 3 cos [2(x − 1)] + 1
C. y = 3 cos [p (x + 1)] − 1
D. y = 3 cos [2(x + 1)] + 1
16. What is the transition point of y = 100 tan (6x) + 4?
A. (0, −4)
B. (6, −4)
C. (0, 4)
D. (6, 4)
20. cot–1 −0.57735 is approximately
A. −1.05.
B. 2.09.
C. −0.65.
D. 2.62.
A. y = p cos [3(x − 1)] − 1
B. y = 3 cos [2(x − 1)] + 1
C. y = 3 cos [p (x + 1)] − 1
D. y = 3 cos [2(x + 1)] + 1
16. What is the transition point of y = 100 tan (6x) + 4?
A. (0, −4)
B. (6, −4)
C. (0, 4)
D. (6, 4)
20. cot–1 −0.57735 is approximately
A. −1.05.
B. 2.09.
C. −0.65.
D. 2.62.
Answers
Answered by
Steve
13.
amplitude 3: 3cos(...)
period p: 3cos(2pi(...)/p) ...
translate by (-1,1): 3cos(2pi(x+1)/p) + 1
So, it appears to be (D), if by p you mean pi.
16: (0,4): (C)
20: (A)
Your use of transition point appears unusual. In #13 the only possible interpretation, given the answer choices, is to use (-1,1) as coordinate translation. Yet transition points are usually max/min or inflection points. Using that same logic gives me (C) on #16.
amplitude 3: 3cos(...)
period p: 3cos(2pi(...)/p) ...
translate by (-1,1): 3cos(2pi(x+1)/p) + 1
So, it appears to be (D), if by p you mean pi.
16: (0,4): (C)
20: (A)
Your use of transition point appears unusual. In #13 the only possible interpretation, given the answer choices, is to use (-1,1) as coordinate translation. Yet transition points are usually max/min or inflection points. Using that same logic gives me (C) on #16.
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.