Maths / Coordinate Geometry / Distance Formula

QUESTION
 

The distance between the points A(1,1) and C,(4,m)

OPTIONS
A. 

large sqrt{9+(m+1)^2}

B. 

large large sqrt{9+(m-1)^2}

C. 

large sqrt{3+(m-1)^2}

D. 

large sqrt{3+(m +1)^2}

Right Option : B

EXPLANATION
Explain TypeExplanation Content
Text

Distance between A(1,1) and C(4,m) will be

large =sqrt{(4-1)^2+(m-1)^2} = sqrt{9+(m-1)^2}

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