Write the function as a set of ordered pairs

Question

Give the domain and range of f

f(a)=r, f(b)=p, f(c)=t, f(d)=r

What does f equal (type ordered pairs) ?

What's the domain and range (use commas to separate answers as needed)

Answer 1

The domain values are those within the parentheses. The range values are the result. 

So the domain is {a, b, c, d} and the range is {p, r, t}

The ordered pairs are

(a,r) (b, p) (c, t) (d, r)