Equation of line having coordinates 
Now,as given the line passes through (0,0) and (6,9).
So, equation of line passing through (0,0) and (6,9) is :
→ 
As , slope intercept form of line is , y = m x +c
By comparing two lines
we get, m = 1.5
We can also find directly slope of line using the formula
m=
cm/s→→option (D)