# CAT Quantitative Aptitude Questions | CAT Algebra - Functions questions

###### CAT Questions | Algebra | Functions - Unconventional Question CAT Questions

This is an Unconventional Question. It is about a function which is a multiplication of two other functions. Functions is a simple topic which involves a lot of basic ideas. Make sure that you a get of hold of them by solving these questions. A range of CAT questions can be asked based on this simple concept of Functions questions in the CAT Exam. Make sure you practice a lot of questions in CAT Functions Algebra to push your CAT preparation in the right direction. Functions as an idea is a fabulous idea if one can wrap their head around it the right way, and it has been one of the staple ideas tested by the CAT exam historically.

Question 7: f(x + y) = f(x)f(y) for all x, y, f(4) = + 3 what is f(–8)?

1. $$frac{1}{3}\\$ 2. $\frac{1}{9}\\$ 3. 9 4. 6 ## 2IIM : Best Online CAT Coaching #### Sign up and sample 9 classesfor free ### Video Explanation ## Best CAT Coaching in Chennai #### Crash course - CAT 2019 Starts Sat, July 20th, 2019 ### Explanatory Answer ##### Method of solving this CAT Question from CAT Algebra - Functions: How do we write -8 as x + y ? f$x + 0) = f(x) f(0)
f(0) = 1
f(4 + – 4) = f(0)
f(4 + – 4) = f(4) f(–4)
1 = +3 * f(–4)
f(-4) = $$frac{1}{3}\\$ f$– 8) = f(– 4 + (– 4)) = f(– 4) f(– 4)
f(– 8) = $$frac{1}{3}\\$ * $\frac{1}{3}\\$ = $\frac{1}{9}\\$ The question is "f$x + y) = f(x)f(y) for all x, y, f(4) = + 3 what is f(–8)?"

##### Hence the answer is "$$frac{1}{9}\\$" Choice B is the correct answer. ###### Best Online CAT CoachingSign up and sample 9 classesfor free Signup Now! ###### Already have an Account? ###### CAT Coaching in ChennaiEnroll at 32000/- Next Weekend Batch Starts Sat, July 13th, 2019 ###### Best CAT Coaching in ChennaiRegister Online, get Rs 4000 off Personalised attention, Small batch sizes. ## CAT Online Coaching | CAT Algebra Videos On YouTube #### Other useful sources for Algebra Questions | Functions Sample Questions ##### Where is 2IIM located? 2IIM Online CAT Coaching A Fermat Education Initiative, 10-C, Kalinga Colony, Bobbili Raja Salai K.K.Nagar, Chennai. India. Pin - 600 078 ##### How to reach 2IIM? Phone:$91) 44 4505 8484
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