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Mathematics 12 Online
OpenStudy (anonymous):

graph r=5(1+cos(t))

OpenStudy (athe):

like this |dw:1344746439107:dw|

OpenStudy (anonymous):

how do u know

OpenStudy (athe):

t =0 -> r=10 t=pi/2 -> r=5 t=pi -> r=0 t=-pi/2 ->r=5 t=2pi -> r=10

OpenStudy (anonymous):

so just make a table of bvalues ?

OpenStudy (anonymous):

how do i recognise what each equation is

OpenStudy (athe):

Yes, but it's polar coordinates.

OpenStudy (athe):

r - distance from the center to the point, t - angle

OpenStudy (anonymous):

yeah so just make table for every equation.. is there like a general form of certain shapes like in cartesian so i can at least recognise what the equation will look like

OpenStudy (athe):

Yes, it is. You have to mo detail table and make goog look graph.

OpenStudy (anonymous):

what values of t to use in table ?

OpenStudy (athe):

Use standart \[0, \pi/6, \pi/4, \pi/3, \pi/2,...\]

OpenStudy (anonymous):

alright thanks

OpenStudy (anonymous):

btw do u have to label the axis ?

OpenStudy (athe):

Like values t =0, r = 5(1+cos(0))=10

OpenStudy (anonymous):

OpenStudy (anonymous):

you should first solve 5+5cos(t)=0 then use t=0 ,pi/2,pi,3pi/2 to plot it.

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