Distance and slope of two points with single functions - c++

Question

I have this assignment that asks to use functions in order to calculate the distance and slope of two points. The thing is I don't really understand how I can use a single function for two separate variables(has to be done this way for the assignment). In this case, the formula asks for x1 and x2, but I have to use a single function. So my question is how can I use my getX and getY functions that prompts for x and y twice? Basically use a single function for both first and second values. Hope that makes more sense.
/*Include statements*/
#include <stdio.h>
#include <math.h>
/*Given Prototypes*/
double getX();
double getY();
double distance(double, double, double, double);
double slope(double, double, double, double);
// begin main
int main()
{
// declare variables
double x1;
double x2;
double y1;
double y2;
// read in variables for points on a graph
x1 = getX();
y1 = getY();
x2 = getX();
y2 = getY();
// print out the distance between the points and the slope of the line
printf("\n");
printf("Distance between the points is %.2f \n", distance(x1, x2, y1, y2));
printf("Slope of the line is %.2f \n\n", slope(x1, x2, y1, y2));
}
/* begin getX function */
double getX()
{
double x;
printf( "Please enter the value of x:");
scanf("%lf", &x);
return x;
}
/* begin getY function */
double getY()
{
double y;
printf("Please enter the value of y:");
scanf("%lf", &y);
return y;
}
/* header for distance function */
double distance(double x1, double y1, double x2, double y2)
{
return sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2));
}
/* header for slope function */
double slope(double x1, double y1, double x2, double y2)
{
return (y2 - y1) / (x2 - x1);
}

Answer 1

you can use the "Struct" in C this will define new datatype that can sotre two or more separate values as below code
-- please if you have any questions
Code is Here :
/Include statements/
#include <stdio.h>
#include <math.h>
/*Given Prototypes*/
double getX();
double getY();
double distance(double, double, double, double);
double slope(double, double, double, double);
// begin main
int main()
{
// declare variables
double x1;
double x2;
double y1;
double y2;
// read in variables for points on a graph
x1 = getX();
y1 = getY();
x2 = getX();
y2 = getY();
// print out the distance between the points and the slope of the line
struct SlopDistance FinalValues;
FinalValues = CalcuateValues(x1, y1, x2, y2);
printf("\n");
printf("Distance between the points is %.2f \n", FinalValues.Distance);
printf("Slope of the line is %.2f \n\n", FinalValues.Distance);
}
/* begin getX function */
double getX()
{
double x;
printf("Please enter the value of x:");
scanf_s("%lf", &x);
return x;
}
/* begin getY function */
double getY()
{
double y;
printf("Please enter the value of y:");
scanf_s("%lf", &y);
return y;
}
/* header for distance function */
double distance(double x1, double y1, double x2, double y2)
{
return sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2));
}
/* header for slope function */
double slope(double x1, double y1, double x2, double y2)
{
return (y2 - y1) / (x2 - x1);
}
struct SlopDistance
{
double Slope;
double Distance
};
struct SlopDistance CalcuateValues(double x1, double y1, double x2, double y2)
{
struct SlopDistance FinalValue;
FinalValue.Distance = distance(x1, x2, y1, y2);
FinalValue.Slope = slope(x1, x2, y1, y2);
return FinalValue;
}