ä¸æ¬¡å½æ°çå¾åä¸æ§è´¨å¦ä¸ï¼
æ§è´¨ï¼
ï¼1ï¼å¨ä¸æ¬¡å½æ°ä¸çä»»æä¸ç¹Pï¼xï¼yï¼ï¼é½æ»¡è¶³çå¼ï¼y=kx+b(kâ 0)ã
ï¼2ï¼ä¸æ¬¡å½æ°ä¸y轴交ç¹çåæ æ»æ¯ï¼0ï¼b)ï¼ä¸xè½´æ»æ¯äº¤äºï¼-b/kï¼0ï¼æ£æ¯ä¾å½æ°çå¾åé½æ¯è¿åç¹ã
å¨ä¸¤ä¸ªä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸ï¼å½ä¸¤ä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkç¸åï¼bä¹ç¸åæ¶,两ä¸æ¬¡å½æ°å¾åéåï¼
å½ä¸¤ä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkç¸åï¼bä¸ç¸åæ¶,两ä¸æ¬¡å½æ°å¾åå¹³è¡ï¼ ãã
å½ä¸¤ä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkä¸ç¸åï¼bä¸ç¸åæ¶,两ä¸æ¬¡å½æ°å¾åç¸äº¤ï¼ ãã
å½ä¸¤ä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkä¸ç¸åï¼bç¸åæ¶,两ä¸æ¬¡å½æ°å¾å交äºyè½´ä¸çåä¸ç¹ï¼0,bï¼.ã
è¥ä¸¤ä¸ªåéx,yé´çå ³ç³»å¼å¯ä»¥è¡¨ç¤ºæy=kx+b(k,b为常æ°,kä¸çäº0ï¼å称yæ¯xçä¸æ¬¡å½æ°
æ©å±èµæï¼
å¨æ£æ¯ä¾å½æ°æ¶ï¼xä¸yçåä¸å®ã
å¨y=kx+bï¼kï¼b为常æ°ï¼kâ 0ï¼ä¸ï¼å½xå¢å¤§mæ¶ï¼å½æ°å¼yåå¢å¤§ kmï¼åä¹ï¼å½xåå°mæ¶ï¼å½æ°å¼yååå° kmã
å½x=0æ¶ï¼b为ä¸æ¬¡å½æ°å¾åä¸y轴交ç¹ç纵åæ ï¼è¯¥ç¹çåæ 为(0ï¼b)ã
å½b=0æ¶ï¼ä¸æ¬¡å½æ°å为æ£æ¯ä¾å½æ°ãå½ç¶æ£æ¯ä¾å½æ°ä¸ºç¹æ®çä¸æ¬¡å½æ°ã
å¨ä¸¤ä¸ªä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸ï¼
å½ä¸¤ä¸ªä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkç¸åï¼bä¹ç¸åæ¶ï¼åè¿ä¸¤ä¸ªä¸æ¬¡å½æ°çå¾åéåï¼
å½ä¸¤ä¸ªä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkç¸åï¼bä¸ç¸åæ¶ï¼åè¿ä¸¤ä¸ªä¸æ¬¡å½æ°çå¾åå¹³è¡ï¼
å½ä¸¤ä¸ªä¸æ¬¡å½æ°è¡¨è¾¾å¼ä¸çkä¸ç¸åï¼bä¸ç¸åæ¶ï¼åè¿ä¸¤ä¸ªä¸æ¬¡å½æ°çå¾åç¸äº¤ã