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Mathematics 16 Online
OpenStudy (anonymous):

Find the point(s) where the line through the origin with slope 7 intersects the unit circle.

OpenStudy (asnaseer):

a unit circle has the equation:\[x^2+y^2=1\]a line through the origin with slope 7 would have the equation:\[y=7x\]

OpenStudy (asnaseer):

substitute one into the other and solve for x.

OpenStudy (asnaseer):

do you understand?

OpenStudy (asnaseer):

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