SAT Math 5.2 Algebra and Functions

SAT Math 5.2 Algebra and Functions

AlgebraFunctions
FunctionsAnalyze functions using different representations
Basics of Functions
Function Notation
LanguageEnglish Language
Passport to Advanced MathQuadratic and exponential functions (word problems)
Product TypeSAT Math
SAT MathAlgebra and Functions

Transcript

00:26

Actually, they tell us we're working with composite functions.

00:30

To solve this problem, we need to plug h of n in for the n in the g of n equation:

00:37

to get 4 times the square root of n squared minus 9.

00:40

The square root of n squared simplifies to n...

00:44

so our equation becomes g of h of n equals 4n minus 9.

00:49

Looks like our answer's B.