A function f : R → R is said to be periodic if there exists a number k > 0 such that f(x + k) = f(x) for all x ∈ R. Suppose that f : R → R is continuous and periodic. Prove that f is bounded and uniformly continuous on R.

idk

step-by-step explanation:

9x

my guess would be b and d, but i didn’t actually get out the pen and paper. lol

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).