Find the range of the function. ƒ(x) = −x2 + 2 A)[2, ∞) B) (−∞, 2] C) [−2, ∞) D) (−∞, −2]
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Answer:
See explanation
Step-by-step explanation:
The question is incomplete, as the required number line is not included in the question.
A general explanation is as follows:
An open circle means > or <
A closed circle means >= or <=
Take, for instance, the attached number line:
The open dot on -3 means >-3 or <-3
The arrow points to the right direction, means >-3 i.e. greater than -3
Hence, the inequality is:
