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A line has slope m and y-intercept 4. Th...

A line has slope m and y-intercept 4. The distance between the origin and the line is equal to :

A

`4/(sqrt(1-m^2))`

B

`4/(sqrt(m^2-1))`

C

`4/(sqrt(m^2+1))`

D

`(4m)/(sqrt(1+m^2))`.

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