Question

For f(x) = −x + 8, which statement is true? ​f(x + k) = f(x) + k f(x − k) = f(x) − k f(x + k) = f(x) + f(k) ​f(x − k) = f(x) + k

Answer 1

I think it’s f(x+k) = f(x) + k correct if I’m wrong

Explanation: