Calculating Slope of a Line Given Two End Points
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It uses the following formula given points are (x1,y1) and (x2, y2)
slope = (y2 - y1) / (x2 - x1)
Source Code
#include <stdio.h>
#include <math.h>
void main()
{
float slope;
float x1, y1, x2, y2;
float dx, dy;
printf("Program to find the slope of a line given two end points\n");
printf("Enter X1: ");
scanf("%f", &x1);
printf("Enter Y1: ");
scanf("%f", &y1);
printf("Enter X2: ");
scanf("%f", &x2);
printf("Enter Y2: ");
scanf("%f", &y2);
dx = x2 - x1;
dy = y2 - y1;
slope = dy / dx;
printf("Slope of the line with end points (%.4f, %.4f) and (%.4f, %.4f) = %.4f", x1, y1, x2, y2, slope);
}
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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