what is the best interpretation of the y-intercept of the line ?

Answer:
Last option
Step-by-step explanation:
Notice that the y-axis represents test scores. The lowest value on the y-axis is a 60.
The x-axis represents hours studied. The lowest value on the x-axis is a 0.
This implies a student who would study 0 hours would expect to score a 60 on the test.