Question

Write a function rule based on the table below.

f(x) = 5x
f(x) = 5
f(x) = 0
f(x) = x+15

Answer 1

Have you realised the consistent results throughout? If you use guess and check, you will have found that all the other rules don't work.

Answer 2

Nope. The function is constant throughout. It doesn't depend at all on x. Have a think about that.