Final answer:
The given options are all in point-slope form, representing different lines with specific slopes and points. Without additional information on line AB, we cannot determine the exact point-slope equation.
Step-by-step explanation:
The question asks to determine which equation is the point-slope form for line AB. Point-slope form is given by the equation y - y1 = m(x - x1), where m is the slope of the line and (x1, y1) is a point on the line. Without specific coordinates for line AB, we cannot know the exact equation for line AB. However, all options presented are indeed in point-slope form and represent different lines with specific slopes and points.