Jordan is kayaking upstream. The following equation model his speed: f(x) = 2x2 − 4x − 9, where x is Jordan's speed relative to
land. What is the domain of the function?
x ≥ 1
x ≤ −4
x ≥ −9
All real numbers
2 answers:
Answer:
All real answers is the correct choice. D.
Answer:
all real numbers .
Step-by-step explanation:
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