Practice Problems #1.3: Properties of Real Numbers and Relations vs Functions
Name: ________________________________________
Section
2A
3A
Due: ___________
5A
2B 3B
5B
Show all your work on a separate sheet of paper
I.
Evaluate each expression if
1.
+
3.
−3 +
2.
= 6, = 0.4,
=
+
= −3
Answers Only
+ 12 −
II. Simplify each expression
4. 7 + 3 − 4 − 5
Answers
1.
5. 4(14 − 10 ) − 6( + 4 )
2.
(16 − 4 ) − (12 + 20 )
3.
6.
III. Name the property illustrated by each question.
7.
× =1
8. ( + 4) + 2 =
9. 4 + 0 = 4
10. 5 + (−5 ) = 0
+ (4 + 2)
11. 5 + (−2) + (−4) = 5 + −2 + (−4)
Answers
IV. Determine whether it’s a function or not a function and if not a function, determine which points make it not
function
Answers
12.
13.
14.
15.
16.
17.
18.