gaokao 2020 Q8

gaokao · China · national-III-arts 5 marks Straight Lines & Coordinate Geometry Point-to-Line Distance Computation

The maximum distance from the point $( 0 , - 1 )$ to the line $y = k ( x + 1 )$ is
A. 1
B. $\sqrt { 2 }$
C. $\sqrt { 3 }$
D. 2

The maximum distance from the point $( 0 , - 1 )$ to the line $y = k ( x + 1 )$ is\\
A. 1\\
B. $\sqrt { 2 }$\\
C. $\sqrt { 3 }$\\
D. 2