(3, -4) is on the line because the equation is point-slope equation where the point (x1, y1) is;
y - y1 = m(x- x1)
The endpoints
for the opposite side would be (8, 1) and (6, 5). The correct
answer between all the choices given is the last choice. I am hoping that this
answer has satisfied your query about and it will be able to help you, and if
you’d like, feel free to ask another question.