Multi-Step Inequalities and Interval Notation

Write the following solution in interval notation:

x ≥ -3

• [ -3, ∞ )

• ( -3, ∞ )

• ( -∞ , -3 )

• ( -∞ , -3]

Solve the inequality.

Solve the inequality.

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Consider the compound inequality x > 1 and x > 4. Which graph represents the solution?

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Write the inequality in interval notation.

• (-2,5)

• (-∞,-2) or (5,∞)

• [-2,5]

• (-∞,-2] or [5,∞)

Solve the inequality and graph its solution.

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Write the following solution in interval notation:

z < 20

• ( -∞ , 20 )

• ( 20,∞)

• ( -∞ , 20)

• ( -∞ , 20]

What interval notation does the number line graph represent?

• [∞, -5)

• (∞, -5)

• [-5, ∞)

• (-5, ∞)

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

or ≤ or ≥

• [ ]

• ( )