ff f(x) = (x] + 2x then the value of f(2.2) + f(1) a) 9.4 b) 3.4 c) 2.4 d) 10.4
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Answer:
Step-by-step explanation:
Given f(x)=2x+4
f(4)=2×4+4=12
f(6)=2×6+4=16
f(4)+f(6)=12+16=28
Substituting the values of 8,10,12,18,28 as x in f(x), we get
f(8)=2×8+4=20
f(10)=2×10+4=24
f(12)=2×12+4=28
f(18)=2×18+4=36
f(28)=2×28+4=60
Hence correct value is C.f(12)=2×12+4=28
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