February 2019 1 45 Report
Grafik fungsi kuadrat f(x) = ax2 + bx + c terbuka ke bawah dan menyinggung sumbu x di satu titik. Persamaan fungsi kuadrat yang mungkin adalah?
a. f(x) = x2 + 8x + 2
b. f(x) = x2 + 4x + 4
c. f(x) = -x2 + 4x + 4
d. f(x) = -x2 - 4x - 4
e. f(x) = -x2 - 4
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