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Mathematics 25 Online
OpenStudy (anonymous):

how do I solve x^2+y^2=5,625 and graph? I know this is an equation for a circle with R=75.

OpenStudy (anonymous):

Well, you don't really solve it, you know the radius, so since there is no h or k, center is (0,0), so draw a circle around (0,0) with radius 75.

OpenStudy (anonymous):

how do I know how far out from orgin to draw the circle?

OpenStudy (anonymous):

What does radius mean?

OpenStudy (anonymous):

point from center to edge

OpenStudy (anonymous):

Exactly, so if the radius is 75, you know how far to go.

OpenStudy (anonymous):

so just take the radius =75 and that is it

OpenStudy (anonymous):

75 what? 75 squares on the graph paper

OpenStudy (anonymous):

may be but it will be quite far ;)

OpenStudy (anonymous):

are my points (0,75), (75,0), (0,-75) (-75,0)

OpenStudy (anonymous):

Yup, you got it!

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

yes ur points are correct

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