To determine the number of centimeters in 1 inch from the graph you described, you can look at the point corresponding to \( x = 1 \).
According to the coordinates you provided:
- The point \( (1, 2.54) \) indicates that when \( x = 1 \) inch, \( y = 2.54 \) centimeters.
Therefore, there are 2.54 centimeters in 1 inch.