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Worksheets3/4/24 Classwork
Total questions: 24
Worksheet time: 3hrs 55mins
Look at the Graph. Write the inequality in interval notation.
[-4, -1)
(-4, -1)
(-4, -1]
[-4, -1]
Express the following in Interval Notation
-9 < x ≤ -4
[-9, -4]
(-9,-4]
[-9, -4]
(-9,-4)
Look at the picture. Which number line corresponds to [-2, 5]?
Graph 1
Graph 2
Graph 3
Graph 4
Express the following in Interval Notation
-8 ≤ x < 8
[-8, 8]
[-8,8)
(-8, 8]
(-8, 8)
Write the inequality in interval notation. x > -1
(-∞, -1)
(-1, ∞]
(-∞, -1]
(-1, ∞)
What interval notation does the number line graph represent?
[∞, -5)
(∞, -5)
[-5, ∞)
(-5, ∞)
Write the following in interval notation
x ≥ 100
(0, 100] (Real quick)
(∞, 100]
[100, ∞)
(∞, 100)
Write the following solution in interval notation:
z < 20
( -∞ , 20 )
( 20,∞)
( -∞ , 20)
( -∞ , 20]
Write the following in interval notation
x < 8
(8, ∞)
(8, -∞)
(-∞, 8)
[-∞, 8]
Can you use the symbols "[" or "]"
with infinity?
Yes
No
Which of the following numbers is not in the interval (3, 9]?
3
3.14
7
9
When graphing an inequality, you use an open dot when you use which symbol?
<, >
≤, ≥
>, ≥
<, ≤
-9 < x < -8.5
6 > x
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
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?
???
What inequality is graphed?
2 < x < 4
2 ≤ x ≤ 4
x > 2 or x < 4
x ≥ 2 or x ≤ 4
How would you describe the solution set for
x ≥ 91 ?the solution set is 91
numbers less than or equal to 91
x values greater than 91
all real numbers greater than or equal to 91
When writing a solution set in interval notation, what do I use for
< or > ?
[ ]
( )
When writing a solution set in interval notation, what do I use for
≤ or ≥ ?
[ ]
( )
Which is the closest to the meaning of [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
