Tentukan domain, kodomain, range dan Pasangan berurutan dari Fungsi berikut.

36 sec read


Tentukan domain, kodomain, range dan Pasangan berurutan dari Fungsi berikut.​

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pertanyaan: tentukan; domain,kodomain,range dan pasangan berurutan

Penjelasan dengan langkah-langkah:

1.dik: y= 7x-4

dit: jika domain = {x|-3<x<3}

Jawaban: – domain= -2,-1,0,1,2

– range = -18, -11,-4,3,10

> a.f(-2) = 7(-2)-4

= -14-4

= -18

b.f(-1) = 7(-1)-4

= -7-4

= -11

c.f(0) = 7(0)-4

= 0 -4

= -4

d.f(1) = 7(1)-4

= 7 – 4

= 3

e.f(2) = 7(2)-4

= 14-4

= 10

– pasangan berurutan=

(-2,-18)

(-1,-11)

(0,-4)

(1,3)

(2,10)

2.dik: y= x-10

dit: jika domain = {1<x<5}

(anggap aja lebih dari dan sama dengan)

(gk ada di keyboard soalnya)

Jawaban:

-domain= 1,2,3,4,5

-range=

a) f(1)= 1-10

= -9

b)f(2) = 2-10

= -8

c)f(3) = 3-10

= -7

d)f(4) = 4-10

= -6

e)f(5) = 5-10

= -5

-pasangan berurutan=

(1,-9),(2,-8),(3,-7),(4,-6),(5,-10)

3. – domain= 1,2,3

– kodomain = a,b,c,d

– range = b,c

– pasangan berurutan =

(1,b),(2,c),(3,b)

untuk kodomain nomor 1 dan 2 saya tdk tau cara carinya dlu gk ada si pelajaranku cuma ada domain sama range


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