cjkc
29.01.2020 •
Mathematics
Answer the question about the given function.
given the function f(x) = -3x2 - 6x - 6, is the point (-1, -3) on the graph of f?
yes
no
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Ответ:
(-1,-3)x = -1 and f(x) = -3 (f(x) is the same as y)
-3 = -3(-1^2) - 6(-1) - 6
-3 = -3 + 6 - 6
-3 = -3 (correct)
yes, it is a solution
Ответ:
20
Step-by-step explanation:
to check: -5*-4=20