Jawaban:
f(x) = x² - 9
titik potong sumbu y
0 = (x - 3)(x + 3)
x = 3 atau x = -3
maka (3,0) dan (-3,0)
titik potong sumbu x
y = 0² - 9
y = 9
melalui titik (0,9)
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Jawaban:
f(x) = x² - 9
titik potong sumbu y
0 = (x - 3)(x + 3)
x = 3 atau x = -3
maka (3,0) dan (-3,0)
titik potong sumbu x
y = 0² - 9
y = 9
melalui titik (0,9)