Evaluate the indicated function for $f ( x ) = x ^ { 2 } + 3$ and $g ( x ) = x - 6$ . $( f - g ) ( 0 )$

A)48
B)39
C)9
D)0
E)-39

Name: Evaluate the indicated function for $f ( x ) = x ^ { 2 } + 3$ and $g ( x ) = x - 6$ . $( f - g ) ( 0 )$ A)48 B)39 C)9 D)0 E)-39
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Question

Evaluate the indicated function for $f ( x ) = x ^ { 2 } + 3$ and $g ( x ) = x - 6$ . $( f - g ) ( 0 )$ 
 
A)48
B)39
C)9
D)0
E)-39

Quizplus · Accepted Answer

$(f - g)(0)$ means we first find $f(0)$ and $g(0)$, then subtract $g(0)$ from $f(0)$. For $f(0) = 0^2 + 3 = 3$ and $g(0) = 0 - 6 = -6$. So, $(f - g)(0) = 3 - (-6) = 9$.

Evaluate the Indicated Function For f(x)=x2+3f ( x ) = x ^ { 2 } + 3f(x)=x2+3

Evaluate the Indicated Function For $f ( x ) = x ^ { 2 } + 3$