1-1.4 絕對值

(1)

(2)

(3)

떴맯귈

굴볆뭐볆뵵 16

떴맯귈

ꑀ귓볆a ꪺ떴맯귈둎걏 ꕨ놼꧊뷨닅뢹ꯡ꧒녯꣬ꪺ볆ꅁ 끏ꚨ| a |ꅁ꧀ꚨ a ꪺ떴맯귈ꅃ | 4 | = _______ | –3 | = _______

왛꧀뵭닟

뱧ꕘꑕꙃꙕ볆ꪺ귈ꅇ (1) | 3.2 | (2) | –2.9 | (3) | 0 | 뱧ꕘꑕꙃꙕ볆ꪺ귈ꅇ (1) |–3.3| (2) |–1000| (3) | | 뻇ꗍ뵭닟 1 4 3

꣒썄뵭닟

(1) 굙 | a | = 3ꅁꭨ a = _____ (2) 굙 | b | = 0ꅁꭨ b = _____ (3) 굙 | c | = –2ꅁꭨ c = _____ (1) 굙 | d | = 5ꅁꭨ d = _________ (2) 굙 | e | = –11ꅁꭨ e = _________ 뻇ꗍ뵭닟 NOTE: Q1. 絕對值的定義為何? NOTE: NOTE: #1 #2 #3

(4)

꣒썄뵭닟

굙a 결뻣볆ꅁꕂ 1 < | a | < 5ꅁꭨ a ꪺ귈ꕩ꿠ꚳ둘귓? ꑷꪾb 결뻣볆ꅁꕂ 0 < | b | < 10ꅁꭨ b ꪺ귈ꕩ꿠ꚳꙨꓖ귓? 뻇ꗍ뵭닟

볆뵵ꑗꪺ띎롱

0

1 2 3 4 –1 –2 –3 –4 | a | ꕎꫭ볆뵵ꑗ a ꥍ귬쉉 O ꪺ뙚싷ꅃ 3 4

왛꧀뵭닟

Ꙣꑕ맏ꪺ볆뵵ꑗꅁO 결귬쉉ꅁAꅂBꅂCꅂD ꕼ쉉꧒ꫭꗜꪺ볆꓀ꝏ 결aꅂbꅂcꅂdꅁ꣤꒤ꅁb = –4ꅂd = 4ꅁꑕꙃ귾ꑀ귓ꑪꑰ쏶ꭙ걏ꖿ뵔 ꪺ? (A) | c | > | b | (B) | a | > | c | (C) | b | > | d | (D) | d | > | a | 볆뵵ꑗꚳA(–5)ꅂB(–8)ꅂ ꑔ귓쉉ꅁ귾ꑀ귓쉉뙚싷귬쉉돌뮷? (A) A (B) B (C) C 뻇ꗍ뵭닟 C( 4 )− 3 4 O a b c d A B C D NOTE: NOTE: Q1. | a | 在數線上代表什麼意思? NOTE: #4 #5 #6

(5)

떴맯귈

굴볆뭐볆뵵 18

궫쉉뻣뉺

떴맯귈 볆뵵ꑗꪺ띎롱 떴맯귈꧊뷨

3

1

2

| a | ꫭꗜ녎 a ꪺ꧊뷨닅뢹ꕨ놼ꪺ볆꙲ | a | ꫭꗜ볆뵵ꑗ a ꥍ 0 ꪺ뙚싷 떴맯귈ꑀꥷꑪ꧳꧎떥꧳0 NOTE: #7

(6)

NOTE: Q1. 在算式中有絕對值是否要先計算? Q2. |-15| - |-8| 會等於 15 + 8 嗎? NOTE: NOTE: #8 #9 #10

(7)

떴 맯 귈 - ꣒ 썄 (뙩 뚥 )

굴 볆 뭐 볆 뵵 20 NOTE: Q1. |a| ꑰ꧳ 9 Ꙣ볆뵵ꑗꪺ띎롱결 ꛳_? Q2. 0 걏ꝟ결ꖿ뻣볆? NOTE: Q. 絕對值小於 a 在數線上代表的意義為何? #11 #12

(8)

#2ꅇ(1) 3.3 (2) 1000

(3)

41 3

#3ꅇ(1) 5 ꧎ –5

(2) ꒣꙳Ꙣ

#4ꅇ19 귓

#6ꅇ(B)

#8ꅇ(1) 75 (2) 1

(3) 33

(4) 37

#9ꅇ(1) 16 (2) 18

(3) 9

#

10ꅇ

31 21

1-1.4 絕對值

떴맯귈

떴맯귈

왛꧀뵭닟

꣒썄뵭닟

꣒썄뵭닟

볆뵵ꑗꪺ띎롱

0

왛꧀뵭닟

떴맯귈

궫쉉뻣뉺

3

1

2

떴 맯 귈 - ꣒ 썄 (뙩 뚥 )

#2ꅇ(1) 3.3 (2) 1000

(3)

#3ꅇ(1) 5 ꧎ –5

(2) ꒣꙳Ꙣ

#4ꅇ19 귓

#6ꅇ(B)

#8ꅇ(1) 75 (2) 1

(3) 33

(4) 37

#9ꅇ(1) 16 (2) 18

(3) 9

#

10ꅇ

#

11ꅇ(1) 4

(2) 9

(3) 5

(4) 11

#

12ꅇ(1) 6

(2) 3

(3) 5

(4) 2