Question

f(-2)
f(x)=-x+4

Answer 1

\[\Large\bf\sf f(\color{royalblue}{x})=-(\color{royalblue}{x})+4\]

\[\Large\bf\sf f(\color{royalblue}{-2})=-(\color{royalblue}{-2})+4\]

Answer 2

Is function notation a little tricky?
Understand how we simply replace every x value with value inside the f brackets?

Answer 3

I understand now, thank you very much

Answer 4

cool c: