HaidenMoore HaidenMoore

02-11-2017
Mathematics

contestada

The range of the function f(k) = k^2+2k+1 is {25,64}. What is the function’s domain?

Respuesta :

djb3p47j9a djb3p47j9a

15-02-2018

[4,7]

since 25,64 are 5 squared to 8 squared
and f(k) is (K+1) squared
then k+1 =5 and k+1=8 are the parameters
so k is 4 to 7

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