Final answer:
The equation in point-slope form for line AB is y + 1 = m(x - 4).
Step-by-step explanation:
The equation in point-slope form for line AB can be derived using the coordinates of points A (4, -1) and B (-2, 3). The formula for the point-slope form is y - y1 = m(x - x1), where m is the slope and (x1, y1) are the coordinates of a point on the line. We can substitute the values from point A into the equation to find the correct equation:
y - (-1) = m(x - 4)
y + 1 = m(x - 4)
Therefore, y + 1 = m(x - 4) is the point-slope form equation for line AB.