The point slope form of a straight line is y-y1 = m(x-x1)
y -(-3) = -7(x-5)
y + 3 = -7(x-5)
y = -7x + 35 - 3
y = -7x + 32
The question is asking which of the following does not have side that are parallel. So which of them have lines that would never touch if they were never ending lines.
