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Ex 2.3, 3 - Chapter 2 Class 11 Relations and Functions
Last updated at August 17, 2026 by Teachoo
Finding values at certain points
Chapter 2 Class 11 Relations and Functions
Concept wise
- Finding Cartesian Product
- Equality of 2 ordered pairs
- Number of elements
- Operations on sets+ cartesian product
- Relations - Definition
- Finding Relation - Set-builder form given
- Finding Relation - Arrow Depiction given
- Number of Relations
- Functions - Definition
-
Finding values at certain points
- Different Functions and their graphs
- Finding Domain and Range - By drawing graphs
- Finding Domain and Range - General Method
- Algebra of real functions
Transcript
Ex 2.3, 3 A function f is defined by f(x) = 2x – 5. Write down the values of (i) f(0) (ii) f(7), (iii) f(–3), Given f(x) = 2x – 5 Putting value of x in f(x) f(0) = 2 × 0 – 5 = 0 – 5 = –5 f(7) = 2 × 7 – 5 = 14 – 5 = 9 f(−3) = 2 × (−3) – 5 = −6 – 5 = −11
