You’re piloting an airplane. To prepare for landing, you change the plane’s altitude from a feet to c feet.
What expression always represents the distance between the two altitudes?
a - c
|a-c| is the correct answer I did this for a test.
a-c
To find the distance between two altitudes, you need to find the absolute difference between the two altitudes.
In this case, you are changing the plane's altitude from a feet to c feet, so the distance between the two altitudes would be the absolute difference between a and c.
The expression that always represents the distance between the two altitudes is:
|a - c|