Algebra 1 3-5 Guided Practice: Working With Sets

by Matthew Richardson

| 8 Questions1

1

10

Solve It! Most numbers on a telephone keypad correspond to a set of letters. Suppose you're friend is using the keypad to encrypt a secret message. He sends you the string of characters 4 6 6 3 in that order. What is one word he might be trying to send?

2

2

10

Problem 1 Got It?

A

B

C

D

3

3

10

Problem 2 Got It?

A

B

C

D

4

10

Problem 3 Got It? What are the subsets of the set P = {a, b}?

Select all that apply.

{b}

{a, b}

{a}

{} (aka ø or "the empty set")

5

10

Problem 3 Got It? What are the subsets of the set S = {a, b, c}?

Select all that apply.

{a, b, c}

{a, c}

{d}

{b, c}

{c}

{b}

{} (aka ø or "the empty set")

{a}

{a, b}

6

5

Problem 3 Got It? Reasoning: Let A = {x | x < -3} and B = {x | x ≤ 0}. Is A a subset of B?

Yes

No

7

10

Problem 3 Got It? Reasoning: Explain your reasoning on the previous item.

8

8

10

Problem 4 Got It?

A

B

C

D

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