1. Quiz 1
1. Given two sets S = {3, 5, 7} and T = {2, 4, 6}. List all elements of the following set:
{(s, t) | (s, t)  S  T and s + t = 9}
Result
(3, 6)
(5, 4)
(7, 2)

2. Quiz 1 2. Give a one-to-one mapping from X to Y.
N = {n: n is an integer and n  0}
X = {x: x  N and x  3}
Y = {y: y = 3 * n - 1, where n  N} N 1 2 X 3 4 5 Y -1 2 5
x  3
x = n + 3
y = 3 * n - 1
n = x- 3
y = 3 * (x – 3) - 1
= 3 * x - 10
(Either one is correct)

3. Quiz 1  (Att2  9) (A B) A (Att1, Att2) B (Att3, Att4, Att1)
 Att1 Att2 Att3 Att4 Att1
  x a y
 (Att2  9) (A B)
Answer:
(2, 2, null, null)
(5, 9, a, 6)
(5, 9, y, 5)

4. Quiz 1
4. List all properties in city Platteville that are managed by staff Joe Young.
 Property.*
( Fname = ‘Joe’ and Lname = ‘Young’ and City = ‘Platteville’
(Staff Property))
Incorrect string expression: -1
Fname = Joe and Lname = Young and City = “Platteville”

5. Quiz 1
(5 points) List Pno, Type and Rent of all properties of owner Frank Smith that have been viewed this year.
You can use CurrentDate.Year as a function to get the current year. The same applies to viewDate.
The same query should work for every year.
 Property. Pno, Type, Rent
( viewDate.Year = CurrentDate.Year and firstName = ‘Frank’ and lastName = ‘Smith’
(Owner Property Viewing))
Either Property. Pno or Viewing.Pno will work
Incorrect string expression: -1