Faaithherss Faaithherss

16-07-2018
Mathematics

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Evaluate the function f(x) = 4•7^x
(for x = -1 & x = 2) show your work.
In dire need of help w/ this one!

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sqdancefan sqdancefan

16-07-2018

For x = -1

[tex]f(-1)=4\times 7^{-1}=4\times \dfrac{1}{7^{1}}=\dfrac{4}{7}[/tex]

For x = 2

[tex]f(2)=4\times 7^{2}=4\times (7\times 7)=4\times 49=196[/tex]

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