1) Domain: All real numbers
Range: y ≤ 2 or y ≥ 4
Function?: Yes
Discrete, continuous, or neither?: Neither
2) Domain: -5 < x ≤ 5
Range: -3 ≤ y ≤ 3
Function?: Yes
Discrete, continuous, or neither?: Continuous
3) Domain: All real numbers
Range: All real numbers
Function?: Yes
Discrete, continuous, or neither?: Continuous
4) Domain: All real numbers
Range: y = 3
Function?: Yes
Discrete, continuous, or neither?: Continuous
5) Domain: {-3, 0, 2, 6}
Range: {-4, 0, 4}
Function?: Yes
Discrete, continuous, or neither?: Discrete
6) Domain: x ≤ 4
Range: y ≥ 0
Function?: Yes
Discrete, continuous, or neither?: Continuous
7) Domain: -2 ≤ x ≤ 2
Range: -2 ≤ y ≤ 2
Function?: No
8) Domain: All real numbers
Range: y ≥ 0
Function?: Yes
Discrete, continuous, or neither?: Continuous
9) Domain: -4 ≤ x ≤ 3
Range: -6 < y ≤ 4
Function?: Yes
Discrete, continuous, or neither?: Continuous
10) Domain: All real numbers
Range: y ≥ -4
Function?: Yes
Discrete, continuous, or neither?: Continuous
11) Domain: -4 < x < 4
Range: -4 < y < 2
Function?: Yes
Discrete, continuous, or neither?: Continuous
12) Domain: -4 ≤ x ≤ 4
Range: -2 ≤ y ≤ 4
Function?: No
Parent Tip: Review the logic above to help your child master the concept of worksheet domains and ranges of relations and functions.
