im beginning to doubt that some of you guys are even in high school.
anyways,
each point or location on this plane (the whole grid thingy) has a coordinate. each coordinate is (x, y) or (units to the right, units going up)
our point T is on the coordinate (-1,-4)
'translated 4 units down' means that you take that whole triangle and move it down four times.
so our 'units going up' (the y in our coordinate) moves down 4 times.
(-4) - 4 = (-8)
the x coordinate is not affected so our answer is (-1, -8)
woohoo