|
ÊÁѤÃÊÁÒªÔ¡ | ¤ÙèÁ×Í¡ÒÃãªé | ÃÒª×èÍÊÁÒªÔ¡ | »¯Ô·Ô¹ | ¢éͤÇÒÁÇѹ¹Õé | ¤é¹ËÒ |
|
à¤Ã×èͧÁ×ͧ͢ËÑÇ¢éÍ | ¤é¹ËÒã¹ËÑÇ¢é͹Õé |
#1
|
||||
|
||||
⨷Âì¿Ñ§¡ìªÑ¹áÅСÃÒ¿
¨§ËÒ¤ÇÒÁªÑ¹¢Í§àÊ鹵ç·Õè¼èÒ¹¨Ø´·Õè¡Ó˹´ãËéµèÍ仹ÕéáÅÐà¢Õ¹¤èÒ·ÕèàËÁÒÐÊÁ
1.(1,2),(6,-5) 2.(2,3),(5,-3)
__________________
¤¹·Õèà¡è§à¢Ò¨Ð¤Ô´ÇèÒµÑÇàͧâ§è Êèǹ¤¹·Õèâ§è¨Ð¤Ô´ÇèÒµ¹àͧà¡è§àÊÁÍ |
#2
|
||||
|
||||
ÊÙµËÒ¡ç
$m =\frac {y_2-y_1}{X_2-X_1}$
__________________
|
#3
|
||||
|
||||
¼Á·ÃÒºÊٵäÃѺ áµè¼Á·ÓäÁèà»ç¹¤ÃѺ
__________________
¤¹·Õèà¡è§à¢Ò¨Ð¤Ô´ÇèÒµÑÇàͧâ§è Êèǹ¤¹·Õèâ§è¨Ð¤Ô´ÇèÒµ¹àͧà¡è§àÊÁÍ |
#4
|
||||
|
||||
1. [1,2],[6,5]
m= 5-2 / 6-1 = 3 / 5 2. [2,3] , [5,-3] m = -3-3 / 5-2 = -2
__________________
|
#5
|
||||
|
||||
¢Í§¤ØÁͧá¹èàÅÂ
__________________
à¢ÒäÁèÃÙéÇèÒÁѹà»ç¹ä»äÁèä´é à¢Ò¨Ö§·ÓÁѹÊÓàÃç¨1% ¤×;ÃÊÇÃäì ÍÕ¡99% ¤×ͤÇÒÁ¾ÂÒÂÒÁ(â·ÁÑÊ ÍÑÅÇÒ àÍ´ÔÊѹ) |
#6
|
||||
|
||||
__________________
|
#7
|
||||
|
||||
ÍéÒ§ÍÔ§:
¤ÇÒÁªÑ¹, m = $\frac {(-5)-2}{6-1}$ = $\frac {-7}{5}$ ªØ´·Õè 2. ¨§ËÒ¤ÇÒÁªÑ¹¢Í§àÊ鹵ç·Õè¼èÒ¹¨Ø´(2,3) áÅШش (5,-3) ¤ÇÒÁªÑ¹, m = $\frac {(-3)-3}{5-2}$ = $\frac {-6}{2}$ = -3 àÃҨоºÇèÒ·Ñé§Êͧ¢éÍ ÁÕ¤ÇÒÁªÑ¹µÔ´Åº «Öè§áÊ´§¶Ö§ ¤ÇÒÁÊÑÁ¾Ñ¹¸ì·Õè¡ÅѺ¡Ñ¹ÃÐËÇèÒ§ x áÅÐ y àÁ×èÍ x ÁÕ¤èÒà¾ÔèÁ¢Öé¹ áÅéǨзÓãËé y ÁÕ¤èÒŴŧ áÅÐ àÁ×èÍ x ÁÕ¤èÒŴŧ áÅéǨзÓãËé y ÁÕ¤èÒà¾ÔèÁ¢Öé¹ ÃÙ»¡ÃÒ¿àÁ×èÍÁͧ¨Ò¡«éÒÂ仢ÇÒ ¨ÐÁÕÅѡɳФÅéÒÂæ¡Ñº·Ò§ÅҴŧà¢Ò¹Ñè¹àͧ |
#8
|
||||
|
||||
¢Íº¤Ø³·Ø¡¤¹¤ÃѺ
__________________
¤¹·Õèà¡è§à¢Ò¨Ð¤Ô´ÇèÒµÑÇàͧâ§è Êèǹ¤¹·Õèâ§è¨Ð¤Ô´ÇèÒµ¹àͧà¡è§àÊÁÍ |
|
|