Cass D.

asked • 05/06/17

Let f(x) = 4x – 3 and g(x) = 3x + 2. g(f(x)) = ?


Let f(x) = 4x – 3 and g(x) = 3x + 2. g(f(x)) = ?
Let f(x) = 4x – 3 and g(x) = 3x + 2. g(f(x)) = ?

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Herb K. answered • 05/06/17

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f(x) = 4x - 3;  g(x) = 3x + 2;  
 
g(f(x)) = g(f)  = 3f + 2 = 3(4x - 3) + 2 = 12x - 12 + 2 = 12x - 10
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Kemal G.

Herb,
 
It looks like you made a mistake in distributing 3 over 4x - 3. You should get the same result I got.
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05/06/17

Herb K.

thanx, Kemal --- you're right --- went a little bit too fast on that one --- Herb
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05/06/17

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