SAT Math Practice 4 - Composite Functions

in #steemiteducation5 years ago (edited)

Composite Functions

Most students have real trouble when learning about these type of functions. Once they get past the "I can't" phase it is actually easy to understand. A composite function is actually two functions, one inside of the other. This is what they mean:

Example

It is asking us to plug in g into f, replace all of the x's with 1/2x - 4, and simplify.

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SAT Practice

Solution

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Therefore, the answer is B.

Extra Practice (Solutions at the bottom)

Question 1

Question 2

Question 3



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Solutions (a) 2 (b) 7 (c) 2

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