Question

if f(x)=100 for all x€R then f(x) is​

Answer 1

Answer:

Correct option is

C

200

The general function f satisfying f(x+y)=f(x)+f(y) will be linear.

⇒f(x)=ax+b

f(x+y)=f(x)+f(y)

⇒b=0

∴f(x)=ax

f(1)=2⇒a=2

∴f  is f(x)=2x

f(100)=200

Step-by-step explanation:

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