Question

write the function as a set of ordered pairs. Give the domain and range of f..

f(a)=s,f(b)=p,f(c)=q,f(d)=s
f={?}
the domain is?
the range is?

Answer 1

One element of your set is (a,s). The set containing just this element is { (a,s) } OK?

Answer 2

sorry, I typed it just as it is in the book. I am so confused, I am used to seeing numbers

Answer 3

Well, pretend they are numbers.

Answer 4

I would prefer a concrete example myself.

Answer 5

Anyway, can you give the rest of the ordered pairs based on my first example?

Answer 6

(a,s),(b,p),(c,q),(d,s)

Answer 7

Don't forget the brackets to indicate it's a set. But yes, that's good.
Now, for domain and range just look at the very first paragraph of this.
Let me know if it leaves you confused.

http://www.purplemath.com/modules/fcns2.htm

Answer 8

Just in case you are, the domain is the set of valid inputs. Here:
{ a,b,c,d }

Answer 9

Thanks for the help