Interval Notation and Its Application to Domain and Range

What is interval notation primarily used for?

• Calculating integrals

• Finding derivatives

• Solving equations

• Describing a set of numbers

Which symbols are used in interval notation to represent 'less than or equal to'?

• Parentheses

• Brackets

• Curly braces

• Angle brackets

How would you write the interval notation for 'X is greater than 4'?

• [4, ∞)

• [4, ∞]

• (4, ∞)

• (4, ∞]

In interval notation, what does the symbol '∞' always get?

• Angle bracket

• Bracket

• Curly brace

• Parenthesis

What is the interval notation for 'X is less than or equal to 5'?

• (5, ∞)

• (-∞, 5]

• [5, ∞)

• (-∞, 5)

What does the domain of a function represent?

• The set of Y values

• The slope of the function

• The set of X values

• The range of the function

If a graph starts at X = -1 and ends at X = 3, what is the domain in interval notation?

• (-1, 3)

• [-1, 3]

• [-1, 3)

• (-1, 3]

What is the range of a function that goes from Y = -3 to Y = 2?

• (-3, 2)

• [-3, 2]

• (-3, 2]

• [-3, 2)

For a parabola opening downwards with a vertex at (1, 2), what is the range?

• (2, ∞)

• [2, ∞)

• (-∞, 2)

• (-∞, 2]

How would you describe all real numbers using interval notation?

• [∞, -∞)

• (-∞, ∞]

• [∞, -∞]

• (-∞, ∞)