ACT Math 5.1 Intermediate Algebra

ACT Math: Intermediate Algebra: Drill 5, Problem 1. What does g(f(x)) equal?

ACT MathIntermediate Algebra
ACT MathematicsIntermediate Algebra
AlgebraFunctions
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FunctionsBuild new functions from existing functions
Understand the concept of a function and use function notation
Intermediate AlgebraFunctions
LanguageEnglish Language
Product TypeACT Math

Transcript

00:25

through g of x.

00:27

Basically, we can substitute "1 over x plus 1" as f of x... to get g of 1 over x plus 1.

00:36

Our new "x" is 1 over x plus 1, so our new g of x will be the entire quantity 1 over

00:42

x plus 1 squared.

00:44

When simplified, we get 1 over x plus 1 squared...

00:48

So there you go. Boom! The answer is B.