Answer:
no; this is not direct variation
Step-by-step explanation:
y = kx is the formula for direct variation
For the first line
28 = k*4
Divide each side by 4
28/4 = 4k/4
7 = k
Now our equation is y = 7x
Substitute the second line
48 = 7*6
48 = 42
This is not true, so this cannot be direct variation
