Question

Determine the distance between point (x1, y1) and point (x2, y2), and assign the result to pointsDistance. The calculation is: Ex: For points (1.0, 2.0) and (1.0, 5.0), pointsDistance is 3.0.

Answer 1

pointsDistance = sqrt (pow(x2 - x1,2.0) + pow(y2 - y1,2.0));

Explanation:

Answer 2

void distance(int x1, int x2, int y1, int y2){

pointsDistance = sqrt((x2-x1)^(2) + (y2-y1)^(2));

}

Explanation:

Suppose we have two points:

`A = (x_(1), y_(1))`

`B = (x_(2), y_(2)`

The distance between these points is:

`D = \sqrt{(x_(2) - x_(1))^(2) + (y_(2) - y_(1))^(2)}`

So, for points (1.0, 2.0) and (1.0, 5.0)

`D = \sqrt{(1 - 1)^(2) + (5 - 2)^(2)} = √(9) = 3`

I suppose this questions asks me to write a code, since i have to attribute the result to pointsDistance. I am going to write a C code for this, and you have to include the math.h library.

void distance(int x1, int x2, int y1, int y2){

pointsDistance = sqrt((x2-x1)^(2) + (y2-y1)^(2));

}