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Mathematics 15 Online
OpenStudy (anonymous):

A circle is centered at the origin and contains the point (-6, 0.)  Use complete sentences and proper grammar to give a justification as to whether or not the point (4, 4.5) lies on the circle.  Show any calculations used.

OpenStudy (anonymous):

@DaBest21

OpenStudy (anonymous):

well we know it is 6 units away from the origin in every direction so |dw:1437577938419:dw| kinda like this

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

\[\sqrt{(x2-x1)^{2}+(y2-y1)^{2}}\] that is the distance formula so plug in 0,0 and 4,4.5

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

ill do it too

OpenStudy (anonymous):

what did u get

OpenStudy (anonymous):

17.5

OpenStudy (anonymous):

r u sure

OpenStudy (anonymous):

x2=4 and x1=0 y2=4.5 y1=0

OpenStudy (anonymous):

@Aliypop plug those in

OpenStudy (anonymous):

10.55

OpenStudy (anonymous):

I mean 10.5

OpenStudy (anonymous):

its actually 6.02

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

which is greater than 6

OpenStudy (anonymous):

so no then u just show the work from the equation

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

so is it a circle or no?

OpenStudy (anonymous):

it is not in the circle unless it says to round

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

Don't forget to medal and fan if you already haven't. Plus send me a message if you need more help @Aliypop

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