Jawaban:
y = -x² + 3x - 4
Penjelasan dengan langkah-langkah:
(1, 0) → (x, y) → x₁ = 1
(-4, 0) → (x, y) → x₂ = -4
(0, 4) → x = 0, y = 4
masukkan ke formula :
y = a. (x - x₁)(x - x₂)
4 = a. (0 - 1)(0 + 4)
4 = a. -1 . 4
4 = a. -4
a = -1
masukkan a :
y = -1. (x - 1)(x + 4)
y = -1. x² + 4x - x - 4
y = -1 . x² + 3x - 4
y = -x² - 3x + 4 ✔
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Jawaban:
y = -x² + 3x - 4
Penjelasan dengan langkah-langkah:
(1, 0) → (x, y) → x₁ = 1
(-4, 0) → (x, y) → x₂ = -4
(0, 4) → x = 0, y = 4
masukkan ke formula :
y = a. (x - x₁)(x - x₂)
4 = a. (0 - 1)(0 + 4)
4 = a. -1 . 4
4 = a. -4
a = -1
masukkan a :
y = a. (x - x₁)(x - x₂)
y = -1. (x - 1)(x + 4)
y = -1. x² + 4x - x - 4
y = -1 . x² + 3x - 4
y = -x² - 3x + 4 ✔
• soal host matematika
• kotak B > A
rules :
menggunakan cara penyelesaian
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