Usage patterns
勾配が急だthe slope is steep
This mountain path has a steep grade, so it's hard to climb.
勾配がゆるいthe slope is gentle
This road has a gentle grade, so it's easy to ride a bicycle on.
屋根に勾配をつけるto give a roof a pitch/slope
The roof was designed with a pitch to let rainwater run off.
勾配を求めるto find the slope (of a line)
Find the slope of the line from the coordinates of two points.