Venn Diagrams with 3 sets

Given that U = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }

and A = { x : x is an odd number }

How can we write Set A in the roster form ?

• A = { 1, 3, 5, 7, 9, 11, 13, 15 }

• A = { 1, 3, 5, 7, 9, 11, 13 }

• A = { 2, 3, 5, 7, 11, 13 }

• A = { 2, 4, 6, 8, 10, 12, 14, 15 }

Given that A is the set of multiple of 4 smaller than 20

How can we write in the Roster form ?

• A = { 4, 8, 12, 16, }

• A = { x : x is a multiple of 4, x < 20 }

• A = { 4, 6, 8, 10, 12, 14, 16, 18 }

• A = { 4, 6, 8, 10, 12, 14, 16, 18, 20 }

Given that A = { 2, 3, 5, 7, 11, 13, 17, 19, ... }

How can we write in the Set-Builder Form ?

• A is a set of a prime number smaller than 20

• A = { x : x is a positive number, x < 19 }

• A = { x : x is a multiple of 2, x ≤ 19 }

• A = { x : x is a prime number }

Given that A = { x : x is a letter in the word “Biology” }

How can write set A in the roster form?

• A = { B, I, O, L, G, Y }

• A = { b, i, o, l, g, y }

• A = { B, i, o, l, g, y }

• A = { B, i, o, L, g, y }

Which of the following represents the shaded region ?

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Which of the following represents the shaded region ?

Which of the following represents the shaded region ?

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