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anonymous
 one year ago
write the equation of the function represented by the following graph medal
anonymous
 one year ago
write the equation of the function represented by the following graph medal

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jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1See if you can determine * The amplitude * The period

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1The period is actually pi/2

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1But you have the right amplitude

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0got it then what next

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1The yintercept is not 0, and the relative extrema is at the yintercept, so we have a cosine function here Since the yintercept is negative, this means that the cosine function has a negative coefficient

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1General form y = A*cos(BxC)+D C = 0 and D = 0, so don't worry about those A = amplitude T = 2pi/B is the period

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1with T = 2pi/B you can solve for B to get B = 2pi/T plug in the period T=pi/2 and simplify

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0b=0 and t=0? @jim_thompson5910

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1T = pi/2 is the period its not t = 0

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1\[\Large B = \frac{2\pi}{T}\] \[\Large B = \frac{2\pi}{\pi/2}\] \[\Large B = ??\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1idk how you're getting that

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1can you simplify this expression? \[\Large \frac{2\pi}{\pi/2}\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1\[\Large \frac{2\pi}{\pi/2} = \frac{2\pi}{1} \times \frac{2}{\pi} = ???\]

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1no, forget about the pi think of the pi as x if you have to

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.12x/1 times 2/x simplifies to what?

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1no, remember that above I said that A = amplitude and you said earlier that the amplitude was 3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1it's actually 3 to make sure that the yintercept is 3

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1so A = 3 B = 4

jim_thompson5910
 one year ago
Best ResponseYou've already chosen the best response.1y = A*cos(BxC)+D A = 3 B = 4 C = 0 D = 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so its y=3cos(4x):)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0y=3cos(4x) is the answer
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