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MATH / If the function j(x) is defined only on domain [−1,2], and is defined on this domain by the formula j(x)=2x²+1, then what is the range of j(x)? Express your answer as an interval o…

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problem

If the function j(x)j(x) is defined only on domain [−1,2][-1,2], and is defined on this domain by the formula j(x)=2x2+1,j(x) = 2x^2+1, then what is the range of j(x)j(x)? Express your answer as an interval or as a union of intervals.
Plain-text mathematical notation (without MathML)
If the function j(x) is defined only on domain [−1,2], and is defined on this domain by the formula j(x)=2x²+1, then what is the range of j(x)? Express your answer as an interval or as a union of intervals.
Original LaTeX notation
If the function $j(x)$ is defined only on domain $[-1,2]$, and is defined on this domain by the formula $$j(x) = 2x^2+1,$$ then what is the range of $j(x)$? Express your answer as an interval or as a union of intervals.

level

Level 5

type

Algebra

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Source and history

task_id
527de456-f7d4-5915-9ff0-8a2cb0922786
task_key
algebra--test--527de456-f7d4-5915-9ff0-8a2cb0922786
task_revision_id
1
config / split
algebra / test

Official source

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