Find the Slope of the Line by Finding the Coordinates $- \frac { 3 } { 10 }$

Multiple Choice

Find the slope of the line by finding the coordinates of two points on it. 10 x + 3 y = 7

A) $- \frac { 3 } { 10 }$
B) $\frac { 10 } { 3 }$
C) $- \frac { 1 } { 3 }$
D) $- \frac { 10 } { 3 }$
E) $- \frac { 1 } { 10 }$