Help with some pre-calc

[idle wraith]

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[river gulch]

Yeah can you tell me what exactly you need help in?

[shadow fog]

Figuring out the points. I thought I did correctly but apparently I didn’t me and my teacher got two separate answers. For example, I thought F ( 0,0) as the question states at t = 0, the distance from the car to the wall is 0 inches. But apparently it’s F (4,40) based off what my teacher said.

[rocky prairie]

F(4,40)?

!

I think your teacher is wrong about F cord

[shadow fog]

That’s what im saying. I dont know where he pulled that number out of. I just need clarification.

[rocky prairie]

When we are at K, then we have gone all the way around

[shadow fog]

So then F would be 2,20?

[rocky prairie]

yes

then what is G?

[shadow fog]

wouldnt it have to be the same y value as the starting point?

ik x would be4

[rocky prairie]

yes t = 4

but

You need to think in terms of "where we are". So, G is in between start and K. Soooo half....

[shadow fog]

40

[rocky prairie]

good

now the hard part is done

[river gulch]

I mean she's not wrong tho

Graph is not starting from t=0

[shadow fog]

yea i think that was my mistake

[river gulch]

But in the question it's given that the function, the car is starting from the 0 distance at t = 0

So yeah

[rocky prairie]

ah I see, you are right. t = 0 is not in the graf, and assuming it could be a problem

[tulip beacon]

Here is the thing: the distance can never be negative, and the maximum distance is 40 inches (the radius of the circle is 20 inches). So, we can safely assume the midline is 20 inches. Therefore, the graph doesn’t start at t=0, nor does it start at 0 inches.

[river gulch]

@shadow fog So it's basically this

I hope you understand right?

[shadow fog]

Ooh okay yea

thats make so much sense

it would make sense for f to be

0

[shadow fog]

tysm

[shadow fog]

tysm for the drawing

[river gulch]

Nw

[rocky prairie]

@shadow fog Sry for the missleading, range is right 😄

[shadow fog]

all good😎

[tulip beacon]

You’re welcome.

[edgy topaz]

@shadow fog

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