Find the function value.
-Find $f ( 2 a )$ when $f ( x ) = 8 x ^ { 2 } + 7 x$.
A) $8 a ^ { 2 } + 14 a$
B) $32 a ^ { 2 } + 7 a$
C) $16 a ^ { 2 } + 14 a$
D) $32 a ^ { 2 } + 14 a$

Name: Find the function value. -Find $f ( 2 a )$ when $f ( x ) = 8 x ^ { 2 } + 7 x$. A) $8 a ^ { 2 } + 14 a$ B) $32 a ^ { 2 } + 7 a$ C) $16 a ^ { 2 } + 14 a$ D) $32 a ^ { 2 } + 14 a$
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Question

Quizplus · Accepted Answer

To find $f(2a)$, substitute $x = 2a$ into the function $f(x) = 8x^2 + 7x$. This gives $f(2a) = 8(2a)^2 + 7(2a) = 8(4a^2) + 14a = 32a^2 + 14a$.

Find the Function Value f(2a)f ( 2 a )f(2a) When f(x)=8x2+7xf ( x ) = 8 x ^ { 2 } + 7 xf(x)=8x2+7x

Find the Function Value $f ( 2 a )$ When $f ( x ) = 8 x ^ { 2 } + 7 x$