Question

sertakan dengan penjelasan dong huhu helpp mee​

Answer 1

(0, -6)

f(x) = ax^2 + bx + c

-6 = a(0)^2 + b(0) + c

c = -6.

(2,-6)

f(x) = ax^2 + bx + c

-6 = a(2)^2 + 2b + c

-6 = 4a + 2b - 6

-6 + 6 = 4a + 2b

4a + 2b = 0

(1, -7)

f(x) = ax^2 + bx + c

-7 = a(1)^2 + b(1) - 6

-7 + 6 = a + b

a + b = -1

a + b = -1

2a + 2b = -2

4a + 2b = 0

2a + 2b = -2

4a - 2a + 2b - 2b = 2

2a = 2

a = 2/2

a = 1

(1, -7)

f(x) = ax^2 + bx + c

-7 = 1(1)^2) + b(1) - 6

-7 + 6 = 1 + b

-1 = 1 + b

b = -1 - 1

b = -2

f(x) = ax^2 + bx + c

f(x) = 1(x^2) - 2x -6

y= x^2 - 2x - 6

Pilihan yang D.