The scatterplot shows the relationship between two variables and . A line of best fit for the data is also shown.

If a data point lies exactly on the line of best fit, which of the following statements must be true about that data point?
The actual -value is greater than the predicted -value.
The actual -value is less than the predicted -value.
The actual -value is equal to the predicted -value.
The data point is an outlier.