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Study Plan

Functions — Study Plan

CAT · Quantitative Aptitude

Step-by-step Functions study plan for CAT Quantitative Aptitude 2026 — structured month-wise approach to mastering this chapter.

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An illustration defining a function as a rule mapping an independent variable (x) from a domain (D) to a dependent variable (y) in a range (R), using a simple example like y=f(x).
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How to Study Functions

A structured approach to studying Functions for CAT Quantitative Aptitude.

Study Plan for Functions

1

Day 1–2: Learn the Theory

Study the chapter thoroughly. Note down definitions, formulas, and key concepts.

2

Day 3: Practice Problems

Solve practice questions and previous year CAT problems. There are 52 questions available for this chapter.

3

Day 4: Revise & Test

Revise key formulas and concepts without looking at notes. Take a practice quiz to test your understanding.

What to Focus On

  • A function assigns exactly one output to each input
  • Domain is the set of all possible input values
  • Range is the set of all possible output values

  • Analytical representation uses mathematical formulas
  • Piecewise functions have different formulas for different domains
  • Tabular representation shows specific input-output pairs

  • Even functions: f(-x) = f(x), symmetric about y-axis
  • Odd functions: f(-x) = -f(x), symmetric about origin
  • Even + Even = Even, Odd + Odd = Odd

Common Mistakes to Avoid

Domain of a function is always all real numbers unless explicitly restricted

f(-x) = -f(x) means the function is even

Every function has an inverse function

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Frequently Asked Questions

What topics are covered in Functions for CAT?
Functions is an important chapter in CAT Quantitative Aptitude. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Introduction to Functions, Methods of Representing Functions, Even and Odd Functions, Inverse Functions.
How important is Functions for CAT?
Functions is a frequently tested chapter in CAT Quantitative Aptitude. Questions from this chapter appear regularly in previous year papers. There are 52 practice questions available for this chapter.
How to prepare Functions for CAT?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.

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