Use the Point on the Line and the Slope of the Line

Use the point on the line and the slope of the line to determine whether any of the three additional points lies on the line. Point $~~~~~~~~~~~~~$ Slope
$( - 2,4 ) ~~~~~~~~$$m = \frac { 1 } { 2 }$ I: $\quad ( 8,6 )$
II: $\quad ( 2,6 )$
III: $\quad ( 4,7 )$

A) Only points II and III lie on the line.
B) Only point II lies on the line.
C) Only point III lies on the line.
D) Only points I and II lie on the line.
E) Only points I and III lie on the line.