A function f is given by f(4x-1) =4x^2 +5 . Evaluate f(15)

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1 Answer

f(15)=f(4x-1), so 4x-1=15, x=4 and f(4x-1)=4x^2+5=4*16+5=69.
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Thank you so much
by Level 2 User (1.9k points)

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