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Mathematics 12 Online
OpenStudy (amy0799):

http://prntscr.com/9yozqg

OpenStudy (noelgreco):

What part don't you get?

OpenStudy (amy0799):

how to start it @NoelGreco

OpenStudy (noelgreco):

What is the sum of the positive areas?

OpenStudy (amy0799):

3Q-1

OpenStudy (amy0799):

is that correct?

OpenStudy (amy0799):

@Owlcoffee @zepdrix

OpenStudy (amy0799):

@Zarkon

zepdrix (zepdrix):

For the positive area? Yah that sounds right :) Total Distance Traveled = (Q-2) + (2Q+1) - (2P+3) - (P-4)

zepdrix (zepdrix):

Displacement is measuring how far the object ended up in relation to it's initial position, so ummmm

OpenStudy (amy0799):

I thought distance is when you add all of it up even if it has a negative area

zepdrix (zepdrix):

Oh yes yes yes :) I'm being silly, sorry bout that.

zepdrix (zepdrix):

Total Distance Traveled = (Q-2) + (2Q+1) + (2P+3) + (P-4) Displacement = (Q-2) + (2Q+1) - (2P+3) - (P-4)

OpenStudy (amy0799):

total distance = 3Q+3P-2 DIsplacement = 3Q-3P Is that what you got?

zepdrix (zepdrix):

Mmmmm ya that sounds right so far :)

OpenStudy (amy0799):

ok cool, what's the next step?

zepdrix (zepdrix):

Find the difference in these values. Difference means to subtract, ya?

OpenStudy (amy0799):

yes, so 3Q+3P-2-3Q-3P?

zepdrix (zepdrix):

3Q+3P-2-(3Q-3P)

OpenStudy (amy0799):

oops my bad

OpenStudy (amy0799):

6P-2

zepdrix (zepdrix):

Yay good job \c:/ I think that's what they were looking for.

OpenStudy (amy0799):

but it's giving me the velocity and i'm finding position stuff, am i not taking any integrals?

zepdrix (zepdrix):

These values involving P an Q are `the result of integration`. They represent the area under the curve for specific intervals (between the intercepts).

zepdrix (zepdrix):

So they already did the work of integrating :) They wanted you to look at it in a different way I guess.

OpenStudy (amy0799):

oooh ok I understand, thank you!

zepdrix (zepdrix):

np

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