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If \( f(x)=2 x^{2}+1 \), what is \( f(x) \) when \( x=3 \) ?

Ask by Vargas Garrett. in the United States
Feb 19,2025

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\( f(3) = 2(3)^2 + 1 = 19 \)

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To find \( f(3) \), we substitute \( x \) with 3 in the function \( f(x) = 2x^{2} + 1 \): \[ f(3) = 2(3)^{2} + 1 \] Calculating \( (3)^{2} \) gives 9, so: \[ f(3) = 2(9) + 1 = 18 + 1 = 19 \] Thus, \( f(3) = 19 \).

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