Question

y =9-x²dan y=x+7
9-x²=x+7


- jangan ngasal - ​

Answer 1

Penjelasan dengan langkah-langkah:

FUNGSI KUADRAT ¿¿¿

y¹ = 9 – x²

y² = x + 7

y² = y¹ → y² – y¹ = 0

x + 7 = 9 – x² → x + 7 – 9 + x² = 0

→ x² + x – 2 = 0

(x + 2)(x – 1) = 0

x¹ = –2 \/ x² = 1

untuk x = –2

→ (–2, 5)

y¹ = 9 – (–2)²

y¹ = 9 – 4

y¹ = 5

y² = –2 + 7

y² = 7 – 2

y² = 5

untuk x = 1

→ (1, 8)

y¹ = 9 – 1²

y¹ = 8

y² = 1 + 7

y² = 8