The following table gives the number of hours studied and the corresponding test score for five students. Which linear equation best models this relationship?
| Hours Studied x | 1 | 2 | 3 | 4 | 5 |
|---|---|---|---|---|---|
| Test Score y | 55 | 60 | 65 | 70 | 75 |
y = 5x + 50
y = 10x + 40
y = 3x + 52
y = 5x + 45
