Xp = -b/2a
= -1/2(1/2)
= -1
Yp = D/-4a
= (b² - 4ac)/-4a
= [1² - 4(1/2)(-2/3)] / -4(1/2)
= [1 + 4/3] / -2
= -7/6
Koordinat titik puncak (-1 , -7/6)
~sen
diket :
y=½ x² + x -⅔
ditanya :
titik puncak = … ?
jawab :
titik puncak trjadi saat x = -b/2a
⇨ x = -(1)/(2)½
= x = -1
= y = ½(-1)² + (-1) - ⅔
= y = ½ - 1 - ⅔
= y = (3-6-4)/6
= y = -7/6
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Xp = -b/2a
= -1/2(1/2)
= -1
Yp = D/-4a
= (b² - 4ac)/-4a
= [1² - 4(1/2)(-2/3)] / -4(1/2)
= [1 + 4/3] / -2
= -7/6
Koordinat titik puncak (-1 , -7/6)
~sen
diket :
y=½ x² + x -⅔
ditanya :
titik puncak = … ?
jawab :
titik puncak trjadi saat x = -b/2a
⇨ x = -(1)/(2)½
= x = -1
y=½ x² + x -⅔
= y = ½(-1)² + (-1) - ⅔
= y = ½ - 1 - ⅔
= y = (3-6-4)/6
= y = -7/6