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Ex 2.3, 3 - f(x) = 2x - 5. Write down f(0), f(7), f(-3) - Class 11 - Finding values at certain points

  1. Chapter 2 Class 11 Relations and Functions
  2. Serial order wise
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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 To find f(0), we put x = 0 f(0) = 2 × 0 – 5 = 0 – 5 = – 5 To find f(7), we put x = 7 f(7) = 2 × 7 – 5 = 14 – 5 = 9 To find f( – 3), we put x = – 3 f( – 3) = 2 × ( – 3) – 5 = – 6 – 5 = – 11

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He provides courses for Mathematics from Class 9 to 12. You can ask questions here.
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