Find the slope of the line in the graph to the right https17

Find the slope of the line in the graph to the right.

http://s17.postimg.org/fh6q57ufj/Screen_Shot_2016_01_21_at_2_36_06_AM.png

the give line passes throgh the points (0,0),(7,3)

slope of the line passing through (x1,y1)(x2 ,y2 ),is m= [(y₂-y₁)/(x₂-x₁)]

(x1,y1)=(0,0) ,(x2 ,y2 )=(7,3)

slope of the line m= [(3-0/(7-0))]

slope of the line m=3/7