In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
point ( 2 , -4)
slope = 3/5
equation of the line = ?
Step 02:
Point-slope form of the line
(y - y1) = m (x - x1)
(y - (-4)) = 3/5 (x - 2)
The answer is:
y = 3/5 x - 26/5 = 0.6x - 7.2