PEMBAHASAN
Aplikasi Fungsi Kuadrat
y = f(x) = ax² + bx + c
y = f(x) = -x² + 12x - 26 dalam meter
a = -1
b = 12
c = -26
Tinggi maksimum yang dapat dicapai batu
= ymaks
= -D/4a
= -(b² - 4ac)/(4a)
= -(12² - 4(-1)(-26)) / (4(-1))
= -(144 - 104) / (-4)
= -40/(-4)
= 10 meter
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PEMBAHASAN
Aplikasi Fungsi Kuadrat
y = f(x) = ax² + bx + c
y = f(x) = -x² + 12x - 26 dalam meter
a = -1
b = 12
c = -26
Tinggi maksimum yang dapat dicapai batu
= ymaks
= -D/4a
= -(b² - 4ac)/(4a)
= -(12² - 4(-1)(-26)) / (4(-1))
= -(144 - 104) / (-4)
= -40/(-4)
= 10 meter