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[±âº»°úÁ¤, 1´Ü°è(¹®ÀÚ¿Í ½Ä)]

1) ´ÙÀ½ ¹®Á¦¸¦ ÇØ°áÇϽÿÀ!

y + = À϶§ y = y - = À϶§ y = y + y = À϶§ y = y + y = - 3 À϶§ y = y + y = - 21 À϶§ y =

[±âº»°úÁ¤, 2´Ü°è(ÀÏÂ÷ ÇÔ¼ö)]

ÇÔ¼ö y=f(x)¿¡¼­ y°¡ x¿¡ °üÇÑ ÀÏÂ÷½ÄÀÏ ¶§ ÀÌ ÇÔ¼ö¸¦ "ÀÏÂ÷ÇÔ¼ö"¶ó°í ÇÕ´Ï´Ù.
y = ax + b
±×¸®°í a¸¦ "±â¿ï±â"¶ó°í ÇÕ´Ï´Ù. ÀÏÂ÷ÇÔ¼öÀÇ ±×·¡ÇÁ´Â Á÷¼±ÀÔ´Ï´Ù.
2)´ÙÀ½ ¹®Á¦¸¦ ÇØ°áÇÕ´Ï´Ù! °°ÀÌ »ý°¢ÇսôÙ.!!

(¹®Á¦) Á¡a(x1, y1) Á¡b(x2, y2)À϶§ y= ax + b À¸·Î Ç¥ÇöÇϽÿÀ!
Á¡A( 3, 9), Á¡B( 3, 6)ÀÌ ÁÖ¾îÁö¸é ±â¿ï±â a = (6 - 9)/(3 - 3) ÀÔ´Ï´Ù.±×·¡¼­ a = 0.000000 !

±×¸®°í b = 9.000000ÀÔ´Ï´Ù.

°á±¹, ÀÏÂ÷ÇÔ¼ö y = 0.000000*x + 9.000000·Î Ç¥ÇöÇÕ´Ï´Ù.

[±âº»°úÁ¤, 3´Ü°è(¿¬¸³ ¹æÁ¤½Ä)]

y1=a*x1+b, y2=a*y2+b ÀÇ µÎ ½ÄÀ» ¿¬¸³¹æÁ¤½ÄÀ¸·Î a¿Í bÀÇ °ªÀ» ±¸ÇÕ´Ï´Ù.
´ëÀÔ¹ý, °¡°¨¹ý, °¡¿ì½º ¼Ò°Å¹ý, ÁÂÇ¥Æò¸é»óÀÇ ±×·¡ÇÁ Ç¥Çö µîÀ¸·Î ÇØ°áÇÕ´Ï´Ù.
3)´ÙÀ½ ¹®Á¦¸¦ ÇØ°áÇÕ´Ï´Ù! °°ÀÌ »ý°¢ÇսôÙ.!!
(¹®Á¦) 4= 3a+b, 7=9a-b¿¡¼­ a¿Í bÀÇ °ªÀ» ±¸ÇϽÿä!
ÁýÁßÇØ¼­ À߸øµÈ ºÎºÐÀ» ã¾Æº¸¾Æ¿ä!
(1)´ëÀÔ¹ý

(2)°¡°¨¹ý

(3)°¡¿ì½º ¼Ò°Å¹ý



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