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Mathematics 21 Online
zarkam21:

?

zarkam21:

1 attachment
Vocaloid:

try to draw a map of 2 places (let's say, school, library, a cafe, etc.) you visit during the day plot your home as (0,0) and try to estimate where the other locations would be (it doesn't have to be super accurate)

zarkam21:

so just like this|dw:1516165897439:dw|

zarkam21:

sorry not very neat

Vocaloid:

good, and now try to think about the first location you would visit after leaving home, and plot its location on the graph

zarkam21:

1 attachment
zarkam21:

1 attachment
Vocaloid:

good, now we just need to come up with one more location after that

zarkam21:

1 attachment
Vocaloid:

awesome, now we divide the journey into 3 different times like the question asks

Vocaloid:

|dw:1516166316337:dw|

Vocaloid:

|dw:1516166321532:dw|

zarkam21:

Okay so do i write this out separately or do it all on the graph

Vocaloid:

I would recommend doing calculations separately

zarkam21:

OKay

Vocaloid:

for time 1, displacement and distance are?

zarkam21:

Um 2?

Vocaloid:

good, distance is 2 miles, displacement is 2 miles north (distance is not a vector but displacement is, so displacement has a direction)

zarkam21:

home is 0 and time 2 is 2?

Vocaloid:

for time 2, we travel 2 miles west so the total distance is 2 + 2 = 4 miles (we add the 2 from before) and the displacement is the distance from the home to the park (to save some time it is 2sqrt(2) miles

zarkam21:

okay so for time 3 is it 0?

Vocaloid:

good, for time 3 the displacement is 0 but the distance is 2 + 2 + 2sqrt(2) (since we are adding all three side lengths)

zarkam21:

Got it thank you

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