#help

86 messages · Page 1 of 1 (latest)

dusk lake
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from the top

sharp quail
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@dusk lake read each bullet point and think what it tells you

dusk lake
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Max is 50

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0,1

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coordinates

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720 seconds to complete an 180

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now what

sharp quail
dusk lake
sharp quail
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what letter does that correspond to

dusk lake
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because its sin

dusk lake
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H?

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h=50

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baically

sharp quail
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H is not a constant

dusk lake
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what

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i said H=50

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its a max

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value

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firstly

sharp quail
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yes, so that max value tells you A = 50

dusk lake
sharp quail
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because something on the outside will be a × on the transformation

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it's a transformation

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if we start with sin(bt+α)

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that wouldn't be at 50

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it'd be at 1

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so to get it to 50

dusk lake
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because when its at 1 its max right

sharp quail
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we have to times

dusk lake
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so

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we would

sharp quail
dusk lake
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50 x1

sharp quail
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yes

dusk lake
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to get

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Ahhh i see

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okay so now

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regarding b

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we have

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720 seconds

sharp quail
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180 per revolution for 720

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180/720 = 1/4

dusk lake
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1/4

sharp quail
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so B is 1/4

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now find α

dusk lake
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what does b even stand for

sharp quail
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,w sketch y=6x

sharp flareBOT
sharp quail
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,w sketch y=6(3x)

sharp flareBOT
sharp quail
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I mean basically

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bad graphs these are

sharp quail
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f(ax) is a transformation of x/a on the x axis

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so it's like

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you've stretched normal sin

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by 4 times

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it's always the opposite when it's inside the brackets

dusk lake
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1/4

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wait

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if we have 180

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but they said it takes 720 seconds

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180710

sharp quail
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yeah that's 4 revolutions

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but

dusk lake
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so would it not be b=4

sharp quail
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since it's inside the brackets

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it's the opposite

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this is just how transformations work

dusk lake
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ohhhh

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so we would multiply it by 4

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if it says 1/4

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i seee

sharp quail
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inside

dusk lake
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yepp

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thank u sm

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can u close this ow pls

sharp quail
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now find α

dusk lake
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now

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i got it

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1.15

sharp quail
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yes