Answer:
See explanation
Step-by-step explanation:
The question is incomplete, as the graph or points of each city are not given.
So, I will provide a general explanation.
To calculate the equation of line through two points;
Start by writing out the coordinates of the two points.
For instance:
[tex]London = (4,6)[/tex]
[tex]Warsaw = (20,10)[/tex]
This points will be represented as:
[tex](x_1,y_1) = (4,6)[/tex]
[tex](x_2,y_2) = (20,10)[/tex]
Calculate the slope (m)
[tex]m = \frac{y_2 - y_1}{x_2 -x_1}[/tex]
[tex]m = \frac{10 - 6}{20 - 4}[/tex]
[tex]m = \frac{4}{16}[/tex]
Simplify
[tex]m = \frac{1}{4}[/tex]
The equation is then calculated as:
[tex]y = m(x - x_1) + y_1[/tex]
This gives:
[tex]y = \frac{1}{4}(x - 4) + 6[/tex]
Open bracket
[tex]y = \frac{1}{4}x - 1 + 6[/tex]
[tex]y = \frac{1}{4}x +5[/tex]
Apply the above steps in the original question