Positive and Negative Intervals

Where is the function positive?

• (-4, 2) U (5, ∞)

• (-∞, 2) U (2, ∞)

• (-∞, -4) U (2, 5)

• (-4, 5) U (5, ∞)

Where is the function negative?

• (-4, 2) U (5, ∞)

• (-∞, 2) U (2, ∞)

• (-∞, -4) U (2, 5)

• (-4, 5) U (5, ∞)

Where is the function positive?

• (0, ∞)

• (-∞, 0)

• (-∞, ∞)

• (-6, 6)

Where is the function negative?

• [0, 1)

• [-1, 0)

• [-1, 1]

• (0, ∞)

Where is the function positive?

• (-∞, 0) U (1, ∞)

• (-∞, 1) U (1, ∞)

• (-∞, 1) U (0, ∞)

• (1, ∞)

Where is the function positive?

• (-∞, 0)

• (-∞, ∞)

• (0, ∞)

• (-∞, 0) U (0, ∞)

Where is the function negative?

• (-∞, 0)

• (-∞, ∞)

• (0, ∞)

• (-∞, 0) U (0, ∞)

Draw a function that is positive (-4, 2) and negative (-∞, -4) U (2, ∞)

Which one represents the correct sign chart?

• 
• 
• 
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Where is the function negative?

• (-∞, -1) U (2, ∞)

• (-∞, -1) U (-1, ∞)

• (-∞, 2) U (2, ∞)

• (-∞, ∞)