anonymous
  • anonymous
Graph the function in the interval from 0 to 2pi. y = 2 cos(theta+pi/6)+2 How do I graph this? This is a sample question. I'm preparing for my final and I really need help
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
These are my options. How do I solve the problem and get the correct graph?
anonymous
  • anonymous
graph2d
anonymous
  • anonymous
I'm new to Trignometric Graphing myself I tried around with the trignometric graphing calculator myself and I got the answer as the 2nd graph I'm trying to figure out how

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anonymous
  • anonymous
@girlygirl12151 But how did you get that? I would like to know how to graph problems like these in the future
anonymous
  • anonymous
@nopen there's such a thing as a graphing calculator? i need one of those :)!
anonymous
  • anonymous
Ok first of all the c in the equation which is the 2 is causing vertical shift
anonymous
  • anonymous
the pi/6 is the horizontal shift. It's moving the graph by 30° to the left (if the radian is positive)
anonymous
  • anonymous
@nopen okay.. i don't understand much of that, but I understand a little. At least i know what i need to go deeper into studying
anonymous
  • anonymous
@nopen do you know how i'd tell if the radian is positive. (this might be a dumb question)
anonymous
  • anonymous
and the 2 that you see that multiplies with the whole equation is the stretch factor, the larger that number, the more the amplitude will get stretched. here plot the graph in this link: https://illuminations.nctm.org/Activity.aspx?id=3589
anonymous
  • anonymous
it's simply any number if it's have +pi/whatever number that's positive radian and if it's negative it will have a negative sign
anonymous
  • anonymous
oh okay thank you for all your help. i clearly have a lot to learn about this subject. you've been a real help
anonymous
  • anonymous
I can tell you one thing though the last graph is absolutely out of the option do you know why?
anonymous
  • anonymous
I mean the first graph
anonymous
  • anonymous
@nopen Is it because its over the line?
anonymous
  • anonymous
I mean under
anonymous
  • anonymous
Nope it's because your equation is have the the +2 y = 2 cos(theta+pi/6)+2 <------- this 2 it means it's have a vertical shift upwards by 2 units
anonymous
  • anonymous
@nopen and it's under the 2 with the starting point at 4
anonymous
  • anonymous
the problem says 0-2pi so that makes sense
anonymous
  • anonymous
yup
anonymous
  • anonymous
@nopen I have to get ready to go to work. Thank you for the link to the graph calculator and for your help. Have a great day!
anonymous
  • anonymous
np

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