Diketahui suatu fungsi f(x) = mx + n jika f(3) = -1 dan f(-1) = 3 maka nilai dari f(-2) adalah...
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Jawaban:
4
Penjelasan dengan langkah-langkah:
f(x) = mx + n
f(3) = 3m + n
f(-1) = -1m + n
3m + n = -1
-1m + n = 3 (-)
4m = (-4)
m = -4/4
m = -1
3m + n = -1
3(-1) + n = -1
n = -1 - (-3)
n = 2
maka:
nilai dari f(-2)
- f(x) = mx + n
- f(-2) = -1(-2) + 2
- f(-2) = (1.2) + 2
- f(-2) = 2 + 2
- f(-2) = 4
