The points labeled W and Y on the topographic map below show the campsites of two families. Each family hiked to the elevation on the map marked X. The arrows show the paths taken by both families.
w
5c/o
500
440
Contour interval: 20 m
What was the change in elevation, to the nearest ten meters, for the family that took the steepest path to Point
X?
Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.