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


Which statement about the slope of the line is true?

It is fraction 1 over 2 throughout the line.

It is 2 throughout the line.

The slope from point O to point A is fraction 1 over 2 times the slope of the line from point A to point B.

The slope from point O to point A is 2 times the slope of the line from point A to point B.