SOLUTION: For the graph y = cos x a) What is the maximum value of y ? For what values of x does this occur? b) What is the minimum value of y ? For what values of x does this occur? c) Wh

Algebra ->  Trigonometry-basics -> SOLUTION: For the graph y = cos x a) What is the maximum value of y ? For what values of x does this occur? b) What is the minimum value of y ? For what values of x does this occur? c) Wh      Log On


   



Question 858089: For the graph y = cos x
a) What is the maximum value of y ? For what values of x does this occur?
b) What is the minimum value of y ? For what values of x does this occur?
c) What is the rang of the function?
d) What is the y-intercepts?
e) What is the x-intercepts?
f) In which interval(s) is sin x decreasing ?
g) In which interval(s) is sin x increasing ?
Can you please help me ? Thanks so much in advance:)

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
For the graph y = cos x
a) What is the maximum value of y ?:: 1
For what values of x does this occur?:: x = 0
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b) What is the minimum value of y ? :: 0
For what values of x does this occur?:: pi/2; (3/2)pi
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c) What is the range of the function?:: [-1,1]
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d) What is the y-intercepts?:: (0,1)
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e) What is the x-intercepts?:: (pi/2,0); ((3/2)pi,0)
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f) In which interval(s) is sin x decreasing ?:: [pi/2,(3/2)pi]
g) In which interval(s) is sin x increasing ?:: [0,pi/2]U[(3/2)pi,2pi]
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Cheers,
Stan H.
Can you please help me ? Thanks so much in advance:)