Answer:
15.5 units
Step-by-step explanation:
If a plane flies from city a to city b, to determine how long in units the airplane's path on the map as the airplane flies along a straight line from city a located at (20, 14) to city b located at (5, 10), we will use the formula for calculating the distance between two points as shown.
D = √(x2-x1)²+(y2-y1)²
Given the location of city 'a' at a coordinate (20, 14) and city b at (5, 10)
x1 = 20, y1 = 14, x2 = 5 and y2 = 10
Distance between the two cities will be expressed as D = √(5-20)²+(10-14)²
D = √(-15)²+(-4)²
D = √225+16
D = √241
D ≈ 15.5 units
Hence, the airplane path on the map as it move from city a to b is approximately 15.5 units.
