peggyrobinson39 peggyrobinson39

22-05-2018
Mathematics

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What is the range of the function f(x) = 3x − 12 for the domain {-2, 2}?

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26-05-2018

[tex]f(x)=3x-12[/tex]

[tex]\text{the domain}\ x\in\{-2;\ 2\}[/tex]

[tex]\text{the range:}\\\\f(-2)=3\cdot(-2)-12=-6-12=-18\\f(2)=3\cdot2-12=6-12=-6\\\\\boxed{\{-18;\ -6\}}[/tex]

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