Positive and Negative Functions

Find the function's x- and y-intercepts.

• x-int (0,-3) and (0,1)

  y-int (-4,0)

• x-int (-3,0) and (1,0)

  y-int (0,-4)

• x-int (-4, 1)

  y-int (-4, ∞)

• x-int (-3,0) and (1,0)

  y-int (0,-3)

Identify the intervals where the function is positive and where it is negative.

• positive (-1, ∞) and negative (-∞, -1)

• positive nowhere and negative (-1, -4)

• positive (-∞,-3) and (1,∞) and negative (-3,1)

• positive (-∞,∞) and negative (-4,∞)

Identify where the function is increasing and where it is decreasing.

• increasing (-1, ∞) and decreasing (-∞,-1)

• increasing (-∞, -1) and decreasing (-1, ∞)

• increasing (-∞,∞) and decreasing nowhere

• increasing (-1, -4) and decreasing (-3, 1)

Identify the function's domain and range.

• domain (-∞,∞) and range (-∞,∞)

• domain (-∞, ∞) and range (-4,∞)

• domain (-∞,∞) and range [-4,∞)

• domain [-3, 1] and range [-4,∞)

Identify the function's x- and y-intercepts.

• x-int (3,0) and y-int (0,1)

• x-int (0,3) and y-int (1,0)

• x-int (1,3) and y-int (3,1)

• x-int (3,0) and y-int none

Where is the function increasing and where is it decreasing?

• increasing nowhere and decreasing (-∞,∞)

• increasing (-∞,1) and decreasing (1,∞)

• increasing (3,∞) and decreasing (-∞,3)

• increasing (-1,3) and decreasing nowhere

Where is the function positive and where is it negative?

• positive (-∞,3) and negative (3,∞)

• positive nowhere and negative (-∞,∞)

• positive (0,1) and negative (3,0)

• positive (0,3) and negative (-1,0)

What are the domain and the range of the function?

• domain (-∞,∞) and range (-∞,∞)

• domain (∞,-∞) and range (∞,-∞)

• domain (-∞, 3] and range [3,∞)

• domain (-∞,1] and range [1,∞)

Identify the function's x- and y-intercepts.

• x-int (1,0) and y-int (0,-1)

• x-int (0,1) and y-int (-1,0)

• x-int (1,∞) and y-int (-∞,-1)

• x-int none and y-int (-1,1)

Where is the function positive and where is it negative?

• positive (1,∞) and negative (-∞,1)

• positive (0,∞) and negative (-∞,-1)

• positive (-∞,∞) and negative nowhere

• positive (∞,1) and negative (1,-∞)