SCE

C program that calculate the rate of change and indicate if it is increasing or decreasing

###### Posted by Samath

Last Updated:
June 03, 2015

Write a C program that receives as input 4 parameters named x1 ,x2, y1 ,y2 representing continuous points of a linear equation(f(x)=x*m+b). Calculate the rate of change and also indicate if it is increasing or decreasing.

**Solution:**

#include<stdio.h> #include<conio.h> int main(int argc, char *argv[]) { int x1,x2,y1,y2; float ans; printf("Enter first X parameter:"); scanf("%d",&x1); printf("Enter corresponding Y parameter:"); scanf("%d",&y1); printf("Enter second X parameter:"); scanf("%d",&x2); printf("Enter corresponding Y parameter:"); scanf("%d",&y2); ans = (y2-y1)/(x2-x1); printf("The rate of change is:%f \n",ans); if(ans > 0) { printf("The equation is increasing. \n"); } else if(ans < 0) { printf("The equation is decreasing. \n"); } else if (ans == 0) { printf("The equation is not changing. \n"); } return 0; }