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Mathematics 10 Online
OpenStudy (marcelie):

help please number 4

OpenStudy (marcelie):

OpenStudy (marcelie):

find the area of the shaded area

OpenStudy (marcelie):

@agent0smith

OpenStudy (marcelie):

@Photon336

OpenStudy (marcelie):

please help i have no idea how to do this

satellite73 (satellite73):

i think you can integrate along the y axis from 0 to 3

OpenStudy (marcelie):

oh okay so do i have to set them equal to each other?

OpenStudy (marcelie):

thats how you can find your y points right ?

satellite73 (satellite73):

you don't have to, they did it for you

satellite73 (satellite73):

they tell you that they intersect at \((-3,3)\)

satellite73 (satellite73):

the one to the right is \(x=2y-y^2\) and the one to the left is \(x=y^2-4y\) subtract the second from the first

satellite73 (satellite73):

you got that? you actually get a nice whole number for the result

OpenStudy (marcelie):

im confuse sorry D:

satellite73 (satellite73):

what is \[2y-y^2-(y^2-4y)\]?

satellite73 (satellite73):

that is the equation on the right minus the one on the left if you were integrating to find the area with respect to x, i.e. along the x axis, it would be the upper minus the lower curve but since it is with respect to y, it is the right minus the left

OpenStudy (marcelie):

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