Tolong bantu jawab ya Kalau bisa dikasih cara nya, jangan ngasal

Tolong bantu jawab ya Kalau bisa dikasih cara nya, jangan ngasal

Jawab:

E. ${ymid 1 < y leq 4, yin R}$

Penjelasan dengan langkah-langkah:

$D_f={ xmid -4 leq x < 8, x in R}\D_f={-4,-3,dots,7,8}$

Mencari Rf (f(x))

$f(x)=3-frac{1}{4} x\bullet f(-4)=3-frac{1}{4} (-4)=3+1=4\bullet f(-3)=3-frac{1}{4} (-3)=3+frac{3}{4}=3,75\vdots\bullet f(7)=3-frac{1}{4} (7)=3-frac{7}{4}=1,25 \bullet f(8)=3-frac{1}{4} (8)=3-2=1$

Maka, $R_f={1,1.25,dotsc ,3.75,4}$

$={ymid 1 < y leq 4, yin R}$ (E)

Jawab:
E. {y | 1 < y ≤ 4, yER}

Penjelasan dengan langkah-langkah:

f(x) = 3-(x/4)
f(x) = (12-x)/4
f(x) garis lurus, maka nilai range
mengikut domain
Domain f(x) = -4 ≤ x < 8

Ditanya: range f(x)
x minimal = -4
f(x) = (12-x)/4
f(-4) = (12+4)/4 = 16/4 = 4
y maks = 4

x maks = 8
f(x) = (12-x)/4
f(8) = (12-8)/4 = 4/4 = 1
y min = 1

Range = 1 < y ≤ 4
= {y | 1 < y ≤ 4, yER}

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