anonymous
  • anonymous
Given: y=2cos1/2( θ+π/4 )+1 find: a. amplitude b. number of cycles c. horizontal shift d. vertical shift e. graph
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
What do you think the answer is?
anonymous
  • anonymous
openstudy is my last resort, ive been trying to figure this out for 6 weeks. i have the graph down and the amplitude but that is about it.
anonymous
  • anonymous
In your equation, is that 1/2 a power or is it inside the cos() function?

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anonymous
  • anonymous
cos() function
anonymous
  • anonymous
Is the +1 inside or outside?
anonymous
  • anonymous
I've gotta go soon so we're gonna have to be quick here.
anonymous
  • anonymous
outside
anonymous
  • anonymous
i just got the vertical shift
anonymous
  • anonymous
When you shift \(f(x)\) RIGHT by \(a\) is becomes \(f(x-a)\). For a left shift, it is \(f(x+a)\). So to find a horizontal shift, we look what \(x\) has been replaced with. In this case, it's \(x+\frac{\pi}{4}\). What is our shift?
anonymous
  • anonymous
Just read this: http://www.regentsprep.org/regents/math/algtrig/att7/sinusoidal.htm
anonymous
  • anonymous
I'm going now. Here's the answers if you want to check yours: a. 2 b. 0.5 cycles of period 4pi c. -pi/4 d. 1 e. https://i.imgur.com/xNGGLyx.png red your graph, green is just cos(x) for comparison.

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