Evaluate the function.
-Find $f ( k )$ when $f ( x ) = 3 x ^ { 2 } + 4 x + 5$
A) $3 \mathrm { k } ^ { 2 } + 4 \mathrm { k } + 25$
B) $3 \mathrm { k } ^ { 2 } + 4 \mathrm { k } + 5$
C) $9 \mathrm { k } ^ { 2 } + 16 \mathrm { k } + 25$
D) $3 k ^ { 2 } + 16 k + 5$

Question

Quizplus · Accepted Answer

To find $f(k)$, substitute $x$ with $k$ in the given function $f(x) = 3x^2 + 4x + 5$, resulting in $f(k) = 3k^2 + 4k + 5$.

Evaluate the Function f(k)f ( k )f(k) When f(x)=3x2+4x+5f ( x ) = 3 x ^ { 2 } + 4 x + 5f(x)=3x2+4x+5

Evaluate the Function $f ( k )$ When $f ( x ) = 3 x ^ { 2 } + 4 x + 5$