2.1 - 2.2 Set & Interval Notation, and Domain & Range Quiz

What inequality is graphed?

• x > 2 and x ≤ −3

• x > 2 and x < −3

• x > 2 or x ≤ −3

• x > 2 or x < −3

When writing in interval notation, what kind of grouping symbol do I use for:

≤ or ≥

• [ ]

• ( )

Write the set of numbers inset-builder notation.
(22, 98]

• {x ∣ 22 < x ≤ 98 }
• {x ∣ 22 ≤ x ≤ 98 }
• {x ∣ 22 ≤ x < 98 }
• {x ∣ 22 < x < 98 }

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

• Graph 1
• Graph 2
• Graph 3
• Graph 4

What set notation does the number line graph represent?

• {x| -5 < x < ∞ }

• {x| -∞ ≤ x < ∞ }

• {x| -∞ ≤ x < 5 }

• {x| -5 ≤ x < ∞ }

What is the DOMAIN of this graph?

• -4 ≤ x ≤ 3

• -1 ≤ x ≤ 4

• 4 < x < 3

• -1 < x < 4

What is the domain in Interval notation?

• [ -2 , 2 ]

• [ 4 , -4 ]

• -2 ≤ x ≤ 2

• 4 ≥ y ≥ -4

What is the range of the following graph?

• all real numbers
• all integers
• any real number greater than zero
• it can not be determined