Mathematics
Junior High
Resolved
่ฆๆใงใ๐ฆ
ๆใใฆใใใใพใใใ๏ผ
่งฃใๆน่งฃ่ชฌใ้กใใใพใ๐โโ๏ธ
ใ1ใใใใใใใใซ็ซใใคใใใจใไธๅฎใฎๅฒๅใง็ใใใๆฌกใฎๅใใซ็ญใใชใใใ
(1) ๅณใฎ่กจใฏ, ใใใใใซ็ซใใคใใฆใใใฎๆ้ x ๅใจ
ใใใใใฎ้ทใymmใฎ้ขไฟใ่กจใใใใฎใงใใใ
xใจyใฎ้ขไฟใๅผใซ่กจใใชใใใ
(2) (1) ใงๆฑใใๅผใฎใฐใฉใใๅณใซใใใชใใใ
(3) ใใฎใใใใใ็ใใคใใใพใงไฝๅใใใใ
ๆฑใใชใใใ
็ญใ
็ญใ
y (mm)
50
40
LA
30
20
ๆ้ x ๅ
้ทใymm
10
0
48
y (m)
:
3
39
0 2 4 6 8 10 12 14 16 18
x (5)
Answers
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