# Functions : Algebra Practice Questions

Functions question could range from very easy questions to medium level difficulty questions in XAT. Concept tested includes finding value of an unknown, determining the domain, codomain and range of functions, determining whether the given function is odd, even or neither odd nor ever. Concepts including whether a function is an invertible function, into function, onto function are also occasionally tested.

If f(x

^{2}– 1) = x^{4}– 7x^{2}+ k_{1}and f(x^{3}– 2) = x^{6}– 9x^{3}+ k_{2}then the value of (k_{2}– k_{1}) is _____- 6
- 7
- 8
- 9
- None of the above

**Choice C**The value of (k_{2}– k_{1}) = 8. Correct answer- Explanatory answer
- Equating Functions
- Easy
- XAT 2015

If f(2, 7) = 57 and f(1, 6) = 37, what is the value of f(3, 10)?

- 107
- 127
- 147
- None of these

**Choice (2)**The value of f(3, 10) is 127. Correct answer- Explanatory answer
- Identifying a function
- Medium

Which of the following is not an odd function?

- f(x) = -x
^{3} - f(x) = x
^{5} - f(x) = x
^{2}- x - f(x) = |x|
^{3}

**Choice (4)**f(x) = |x|^{3}is an even function. Correct answer- Explanatory answer
- Odd and Even Functions
- Easy

- f(x) = -x

## XAT TANCET Practice Questions - Listed Topic wise

- Number Theory
- Permutation Combination
- Probability
- Inequalities
- Geometry
- Coordinate Geometry
- Mensuration
- Trigonometry
- Data Sufficiency
- Percentages
- Profit Loss
- Ratio Proportion
- Mixtures & Alligation
- Speed Distance & Time
- Pipes, Cisterns & Work, Time
- Simple & Compound Interest
- Races
- Averages & Statistics
- Progressions : AP, GP & HP
- Set Theory
- Clocks Calendars
- Linear & Quadratic Equations
- Functions
- English Grammar
- General Awareness