SAT Math 5.2 Algebra and Functions
|Functions||Analyze functions using different representations|
Basics of Functions
|Passport to Advanced Math||Quadratic and exponential functions (word problems)|
|Product Type||SAT Math|
|SAT Math||Algebra and Functions|
Actually, they tell us we're working with composite functions.
To solve this problem, we need to plug h of n in for the n in the g of n equation:
to get 4 times the square root of n squared minus 9.
The square root of n squared simplifies to n...
so our equation becomes g of h of n equals 4n minus 9.
Looks like our answer's B.