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oee [108]
2 years ago
10

MAX POINTS PLEASE HELP Will make Brainliest

Mathematics
2 answers:
never [62]2 years ago
6 0

Answer:

Period: 6, Frequency: 1/6, Equation: -4cos(\frac{\pi }{3}x)-2

Step-by-step explanation:

Because the graph starts at x = 0 at a minimum/maximum, it's easiest to use cosine, so we don't have to shift the graph horizontally. cos(x)

If you take the max/min points and average them, you can use the distance between the average value and the max/min to get the total amplitude, A, which is 4.

Because this function starts at a minimum, but cosine starts at a maximum, we will flip it vertically by adding a negative coefficient to whatever the amplitude is.

We see that the same part of the graph recurres every 6 x-units, so the period is 6. The frequency of this is 1/(period), 1/6.

The coefficient of x in a sin/cos function is 2\pi /Period, = \pi/3.

The vertical shift (how much the average value of the function moved from 0 to its current position) is -2.

Put all that together, you get y = -4cos(\frac{\pi }{3}x)-2

xxTIMURxx [149]2 years ago
5 0

\qquad\qquad\huge\underline{{\sf Answer}}♨

let's solve ~

Period :

Difference between two successive crest or trough is known as period, so here :

period = 9 - 3 = 6

Frequency

Now, we know that frequency = 1/period

So, frequency for given function is 1/6 hertz , or approximately 0.167 hertz

  • Amplitude (A) = 4 (flipped)

  • b = 2π ÷ Period = 2π /6 = π/3

  • k = -2

The required equation is ~

\qquad \sf  \dashrightarrow \:y = a \cos(bx)  + k

\qquad \sf  \dashrightarrow \:y =  - 4 \cos( \frac{ \pi}{3} x)  - 2

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