There are 10 marks between 7 and 8, therefore each mark is equivalent to 0.1
For 8.3, count 3 marks after 8:

First convert the fraction into decimal. Then count 6 marks from 7:
Answer:
Y=2/3x-14/3
Step-by-step explanation:
If you subtract the 2 from the y+2 and from the simplified version of 2/3(4), you get the answer above! I hope this helps!
Look at the one I wrote underneath. The answer is B