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If you don't like how someone answers your questions, you don't have to ask them. Also, the answers in example 2 suggest something false about linear functions
by sheriff 17y ago
If you don't like how someone answers your questions, you don't have to ask them.
Also, the answers in example 2 suggest something false about linear functions. Take f(x) = x + 1.
f(a) + f(b) = a + b + 2 != f(a+b) = a + b + 1
- asjo 17y agoUhm, the definition of a linear function is that f(a+b)=f(a)+f(b) and f(n·a)=n·f(a) (i.e. additivity and homogeneity). Maybe you are thinking by a first-degree polynomial, which is a straight line when graphed? http://en.wikipedia.org/wiki/Linear_function http://en.wikipedia.org/wiki/Linear_function