In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
a. 3y = 4x + 1
direct variation = ?
Step 02:
3y = 4x + 1
y = 4/ 3 x + 1 / 3 ====> direct variation y = k x
y = k x
k = 4/3
The answer is:
direct variation , k = 4/3