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If the function f ( x ) is defined as f ( x ) = 3( x + )
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13 Jul 2020, 08:00
13 Jul 2020, 08:00
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Question Stats:
73% (00:34) correct
26% (00:12) wrong based on 15 sessions
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If the function \(f ( x )\) is defined as \(f ( x ) = 3( x + 2) + 5\), then \(f ( a − 2) =\)
A \(3 a\)
B \(3 a + 5\)
C \(3 a + 11\)
D \(3 a − 1\)
E \(3 a − 6\)
Kudos for the right answer and explanation
A \(3 a\)
B \(3 a + 5\)
C \(3 a + 11\)
D \(3 a − 1\)
E \(3 a − 6\)
Kudos for the right answer and explanation
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Re: I f the function f ( x ) is defined as f ( x ) = 3( x + 2)
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15 Jul 2020, 08:23
15 Jul 2020, 08:23
1
Go through this post first to understand the theory of Functions!
\(f ( x ) = 3( x + 2) + 5\) is given to us and we need to find the value of \(f ( a − 2) =\).
To solve this we will compare what is inside the bracket of the question
so, (a-2) is asked and in the question we are (x)
so, in \(f ( x ) = 3( x + 2) + 5\) we need to replace x with a-2 to get the value of \(f ( a − 2)\)
=> \(f ( a − 2) =\) = 3*((a-2) + 2) + 5 = 3*a + 5
So, Answer will be B
Hope it helps!
\(f ( x ) = 3( x + 2) + 5\) is given to us and we need to find the value of \(f ( a − 2) =\).
To solve this we will compare what is inside the bracket of the question
so, (a-2) is asked and in the question we are (x)
so, in \(f ( x ) = 3( x + 2) + 5\) we need to replace x with a-2 to get the value of \(f ( a − 2)\)
=> \(f ( a − 2) =\) = 3*((a-2) + 2) + 5 = 3*a + 5
So, Answer will be B
Hope it helps!
gmatclubot
Re: I f the function f ( x ) is defined as f ( x ) = 3( x + 2) [#permalink]
15 Jul 2020, 08:23
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