i noticed it doesn't have x in them. i don't know what to do.

Question

prove: let epsilon>0. let f(x) = pi + 3 for x∈ real number. Prove your conjecture. Whether f is
continuous for all r ∈ real number.

my proof;
|f(x)-f(r)|=|(pi+3)-(pi+3)|<epsilon
so 0<epsilon
thus f is continuous at 0. QED