Let's plug the coordinate point values into the equation:

(1,3) is
x₁ and (3,1) is x₂
Begin to simplify within the parenthesis:

Square the two numbers:
Add the two to get:
Since 8 is not a square number, this is as far as we can simplify this. Hope this helps!
Answer:
The answer to your question is distance = 3500000 km
Step-by-step explanation:
Data
Scale 1 : 500000
7 cm
Process
1.- To solve this problem use direct proportions or rule of three.
1 : 500 000 :: 7 : x
2.- Multiply the middle numbers and the result divide it by the edge.
x = (7 x 500000) / 1
Simplification
x = 3500000 km
Answer:
See explanation
Step-by-step explanation:
There are three possible cases:
1. Point N lies between M and P, then MN + NP = MP. Consider needed difference:

2. Point N lies to the right from point P, then MP + PN = MN. Consider needed difference:

3. Point N lies to the left from point M, then NM + MP = NP. Consider needed difference:

Y = 2 + 3x
x + y = 26
Substitute:
x + (2 + 3x) = 26
4x + 2 = 26
4x = 24
x = 6
6 + y = 26
y = 20