Answer:
B
Explanation:
First a linear function has no variables to a power other than 1
That means we can eliminate answers A ,C D and E
Looking at B
y + 7 = 5x
Subtract 7 from each side
y+7-7 = 5x -7
y = 5x-7
This is in the form of a line (y=mx+b)
This is linear