Free Printable Quizizz Intervals

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Quizizz Intervals

Total questions: 20

Worksheet time: 42mins

Name

Class

Date

Over what interval is this function constant?

-5 < x < ∞

-3 < x < 4

4 < x < ∞

-5

When is the velocity decreasing?

0 < t < 60

40 < t < 60

15 < t < 40

-40 < t < 0

When is this function increasing?

-2.5 < x < 2.5

0 < x < 5

0 < x < 55

-5 < x < 0

Express the following in Interval Notation
-9 < x ≤ -4

[-9, -4]

(-9,-4]

[-9, -4]

(-9,-4)

Write the following in interval notation
x < 8

(8, ∞)

(8, -∞)

(-∞, 8)

[-∞, 8]

Look at the Graph. Write the inequality in interval notation.

[-4, -1)

(-4, -1)

(-4, -1]

[-4, -1]

When graphing b< 6 would you use an open or closed circle?

open

closed

Look at the picture. Which number line corresponds to [-2, 5]?

Graph 1

Graph 2

Graph 3

Graph 4

Can you use the symbols "[" or "]"

with infinity?

Yes

10.

Which of the following numbers is not in the interval (3, 9]?

3.14

11.

When graphing an inequality, you use an open dot when you use which symbol?

<, >

≤, ≥

>, ≥

<, ≤

12.

Express the following in Interval Notation
-9 < x < -8.5

[-9, -8.5]

[-9, -8.5)

(-9, -8.5]

(-9, -8.5)

13.

Pick the correct letter for:
6 > x

14.

When you graph an inequality, you use a closed dot when you use which symbols?

≤, ≥

<, >

≤, <

≥, >

15.

Which is the closest to " [ a, b) "

All values between a and b, including both a and b

All values between a and b, excluding both a and b

All values between a and b, including a, but excluding b

All values between a and b, including b, but excluding a

16.

Why do we not use closed parentheses/brackets for positive and negative infinity?

Infinity is an idea/concept and not an actual number, so it can't be included

False, we do in fact use closed parentheses/brackets for positive and negative infinity

Huh?

???

17.

Express the following interval in Set notation:
(-7, 15]

-7 ≤ x ≤ 15

-7 < x ≤ 15

-7 ≤ x < 15

-7 < x < 15

18.

What inequality is graphed?

2 < x < 4

2 ≤ x ≤ 4

x > 2 or x < 4

x ≥ 2 or x ≤ 4

19.

Write the inequality in interval notation. x > -1

(-∞, -1)

(-1, ∞]

(-∞, -1]

(-1, ∞)

20.

Write the following in interval notation
x > 6 and x ≤ 10

(-∞, 6) and (10, ∞)

[6, 10)

(-∞, 6] and [10, ∞)

(6, 10]

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Quizizz Intervals

Total questions: 20

Worksheet time: 42mins

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