Do you know what do you need to show, that a map is a linear transformation?
soft igloo
Do you know what do you need to show, that a map is a linear transformation?
You need to show 2 things: f(a+b) = f(a) + f(b) and cf(a) = f(ca). c is any real number and a, b are in the domain.
The second condition for example fails for 35a), so it isn't a linear transformation. b) is linear, just calculate it out.