title: Check Line Passes Origin
signature: func checkLinePassesOrigin(x1 int, y1 int, x2 int, y2 int) bool {
test_code: package main
  
  import (
      "fmt"
      "reflect"
      "math"
      "sort"
  )
  
  // SOLUTION CODE
  // ===================================
  PLACEHOLDER_CODE_BODY
  
  // TESTING CODE
  // ===================================
  func validateSolution(actual bool, expected bool) bool {
      return reflect.DeepEqual(actual,expected)
  }
  
  func driver(x1 int, y1 int, x2 int, y2 int, expected bool) string {
      if validateSolution(PLACEHOLDER_FN_NAME(x1, y1, x2, y2),expected) {
              return "PASSED"
      }
      return "FAILED"
  
  }
  
  func main() {
  
      // Use imports to avoid undefined errors
      var _ = reflect.DeepEqual
      _ = math.Abs
      _ = sort.Sort
      result := ""
      result = driver(1, 
  	28, 
  	2, 
  	56, true)
      fmt.Printf("TEST-0...%s\n", result)
      
      result = driver(10, 
  	0, 
  	20, 
  	0, true)
      fmt.Printf("TEST-1...%s\n", result)
      
      result = driver(0, 
  	1, 
  	0, 
  	17, true)
      fmt.Printf("TEST-2...%s\n", result)
      
      result = driver(1, 
  	1, 
  	10, 
  	10, true)
      fmt.Printf("TEST-3...%s\n", result)
      
      result = driver(82, 
  	86, 
  	19, 
  	4, false)
      fmt.Printf("TEST-4...%s\n", result)
      
      result = driver(78, 
  	86, 
  	11, 
  	6, false)
      fmt.Printf("TEST-5...%s\n", result)
      
      result = driver(13, 
  	46, 
  	33, 
  	33, false)
      fmt.Printf("TEST-6...%s\n", result)
      
      result = driver(18, 
  	29, 
  	95, 
  	12, false)
      fmt.Printf("TEST-7...%s\n", result)
      
      result = driver(42, 
  	35, 
  	25, 
  	36, false)
      fmt.Printf("TEST-8...%s\n", result)
      
      result = driver(29, 
  	17, 
  	45, 
  	35, false)
      fmt.Printf("TEST-9...%s\n", result)
      
          
  }
source_py: def check_line_passes_origin(x1, y1, x2, y2):
      return ((x1 * (y2 - y1)) == (y1 * (x2 - x1)))
source_cpp: bool check_line_passes_origin(int x1, int y1, int x2, int y2) {
    return ( x1 * ( y2 - y1 ) == y1 * ( x2 - x1 ) );
  }