initialize all three vector coordinates
a = - 4 ; NEW_LINE b = - 2 ; NEW_LINE x = 0 ; NEW_LINE y = 0 ; NEW_LINE p = - 2 ; NEW_LINE q = - 1 ; NEW_LINE if ( checks ( a , b , x , y , p , q ) ) : NEW_LINE INDENT print ( " Yes " ) ; NEW_LINE DEDENT else : NEW_LINE INDENT print ( " No " ) ; NEW_LINE DEDENT