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Valentine
Mathematics
20 November, 12:26
F (-2) {3x^2-1, x+8
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Elisha Giles
20 November, 12:42
0
f (x) = 3x² - 1
f (-2) = 3 (-2) ² - 1
f (-2) = 3 (4) - 1
f (-2) = 12 - 1
f (-2) = 11
f (x) = x < 1
f (-2) = - 2 < 1
f (x) = x + 2
f (-2) = - 2 + 2
f (-2) = 0
f (x) = x ≥ 8
f (-2) = - 2 ≠ 8
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