Jawaban:
C. y = x² - 3x - 4
Penjelasan dengan langkah-langkah:
A(-1, 0)
B(4, 0)
C(0, -4)
yC= a(xC - xA)(xC - xB)
-4 = a(0 - (-1)(0 - 4)
-4 = a(-4)
a = 1
y = 1(x + 1)(x - 4)
= x² - 3x - 4
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Jawaban:
C. y = x² - 3x - 4
Penjelasan dengan langkah-langkah:
A(-1, 0)
B(4, 0)
C(0, -4)
yC= a(xC - xA)(xC - xB)
-4 = a(0 - (-1)(0 - 4)
-4 = a(-4)
a = 1
y = 1(x + 1)(x - 4)
= x² - 3x - 4