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x^2 - 2x - 6
ax^2 + bx + c
a = 1
b = - 2
c = - 6
Titik ekstrim adalah titik di mana
x = - D / 2a
y = - b / 4a
Titik X:
D
= b^2 - 4 a . c
= 4 - 4 . 1 . -6
= 4 + 24
= 28
x
= - D / 2a
= - 28 / 2
= -14
Titik Y:
- b / 4a
= 2 / 4
= 0,5
Maka titik ekstrim dari cungsi x^2 - 2x - 6
= (- 14, 0,5)
Semoga membantu :)