Assistace please

I need to Write a C++ program where you input the slopes for two lines and determine if the lines are are perpendicular to each other. I need to input the slopes from the screen.

so far i have this

#include <iostream>
 
using namespace std;
 
int main()
{
   float slope1;
   float slope2;
 
   cout <<; "Please enter two slopes:" <<; endl;
 
   cin<< slope1 << slope2;
 
   cout << "You entered " << slope1 << " and " << slope2 << endl;
 
   return 0;
}

Remember that two lines were perpendicular if the product of their corresponding slopes equals -1. In other words all you need is an IF statement deciding whether

<div class="orangebox">[code]</div>

or not.

I hope this helps.

In fact a better alternative to this would be using an epsilon constant to check whether the value of the product slope1*slope2 is "close enough" to -1, considering roundoff errors. Thus instead of just writing

I suggest you write the following

#include <math.h>
 
// epsilon constant
#define EPS 1E-6
 
...
 
if (fabs(slope1*slope2 + 1.0) < EPS) cout << "lines are perpendicular";