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2. Which of the following is true for f?

f(x)=
3x + 1, if -9 < x < -2
-5, if-2 < x≤ 1
(x-6, if 1
A The domain is -9 < x < -2, -2 B The range is (-26, 1).
The function is decreasing over the interval (-2, 1).
D The rate of change over the interval (-9, 1] is 3.

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