0.1 Real Numbers Flashcards by Alex Hargen

Q

Integer

A

a whole number (neg or pos)

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Q

Interval Notation

A

(x, y)
[x,y)
(x, y]

The numbers at the ends of a line segment

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Q

Write the interval notation

-3 < x < 5

A

(-3, 5)

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Q

Write the interval notation

X > 6

A

(6,∞)

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Q

Interpret the inequality

-3 < x <5

A

All real numbers greater than -3 and less than 5

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Q

Describe the inequality

–4 ≤ x < 5.

A

all real numbers between –4 and 5, including –3 and excluding 5.

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Q

(-2, 3)

Write the inequality

A

-2 < x <3

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Q

(-∞, 1)

Write the inequality

A

x < 1

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Q

Additive inverse of -3

A

3

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Q

Additive inverse of 5

A

-5

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Q

Additive inverse of 7 - 3x

A

3x -7

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Q

Additive inverse of 2x + 2

A

-2 - 2x

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Q

Base of exponent

A

+2

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Q

Base of exponent

A

-2

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Q

A

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Q

A

Q

A

Q

A

Q

A

Q

Bounded or unbounded interval?

[a, ∞)

A

Unbounded, because one end is infinite

x ≥ a

Q

Bounded or unbounded interval?

(–∞, b)

A

Unbounded

x < b

Q

What is the scientific notation of
.00345?

A

3.45 x 10 ^ -3