1. The domain of function d(y) is all real numbers because y can be any real number. 2. The domain of function g(k) is all real numbers because k can be any real number. 3. The domain of function b(n) is all real numbers because n can be any real number.

1. Name: ___________________________________
Algebraically determine the following domains. Use correct set notation.
1. d(y) = y + 3
2. g(k) = 2k2 + 4k – 6
3. b(n) = 2n − 8
4. m(t ) = 9 − 3t
x−5
u( x ) =
5. 2x + 4
1
a(r) = r +
6. r −1
2
y (c) = 2
7. c + 3c
w+4
q( w) = 2
8. w +1
These contain combinations of functions.
x
f ( x) =
9. x+3
10. t ( v ) = v 2 + 2v − 8
t
n (t ) =
11. 1+ t
1
x( y ) = y 4 + 2 y + y+
12. y
Range practice: Use your calculator to graph and determine the ranges of the functions
numbered 1-5.