## Tuesday, September 17, 2013

### Write a C++ Program for Calculating Slope of a Line Given Two End Points

Write a C++ Program for Calculating Slope of a Line Given Two End Points

It uses the following formula given points are (x1,y1) and (x2, y2)

slope = (y2 - y1) / (x2 - x1)

```#include <iostream>
#include <math.h>

void main()
{
float slope;
float x1, y1, x2, y2;
float dx, dy;

std::cout << "Program to find the slope of a line given two end points\n";

std::cout << "Enter X1: ";
std::cin >> x1;

std::cout << "Enter Y1: ";
std::cin >> y1;

std::cout << "Enter X2: ";
std::cin >> x2;

std::cout << "Enter Y2: ";
std::cin >> y2;

dx = x2 - x1;
dy = y2 - y1;
slope = dy / dx;

std::cout << "Slope of the line with end points (" << x1 << ", " << y1 << " and (" << x2 << ", " << y2 << ") = ";
std::cout << slope << "\n";

}```
```
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```OUTPUT

Program to find the slope of a line given two end points
Enter X1: 2.5
Enter Y1: 7.5
Enter X2: 12.5
Enter Y2: 18
Slope of the line with end points (2.5, 7.5 and (12.5, 18) = 1.05
Press any key to continue . . .```
```
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```
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