Last updated at Jan. 28, 2020 by Teachoo
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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 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
Ex 2.3
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