The figure shows a line graph and two shaded triangles that are similar:


Which statement about the slope of the line is true?

The slope from point O to point A is fraction 1 over 4 time the slope of the line from point A to point B.
The slope from point O to point A is four times the slope of the line from point A to point B
It is 4 throughout the line.
It is fraction 1 over 4 throughout the line.