Domain and Range Review

The graph of part of linear function g is shown on the grid.

Which inequality best represents the domain of the part shown?

A student worked out at a gym continuously for 50 minutes. The graph shows the remaining percentage of the workout as a linear function of x, the time in minutes.

Which answer choice best describes the domain and range of the function for this situation?

• Domain: All real numbers greater than or equal to 0 and less than or equal to 100

  Range: All real numbers greater than 0 and less than or equal to 50.

• Domain: {-2}

  Range: {100}

• Domain: All real numbers greater than or equal to 0 and less than or equal to 50.

  Range: All real numbers greater than 0 and less than or equal to 100.

• Domain: {100}

  Range: {-2}

A part of an exponential function is graphed on the grid.

Which inequality best represents the domain of the part shown?

Domain?

• x ≥ –2

• x ≤ –2

• x ≥ –3

• x > –2

• x ≤ –3

Range?

• y ≥ –2

• y ≤ –2

• y > –3

• y > –2

• y ≤ –3

Domain?

• x ≤ –1

• x ≥ –1

• x < –1

• x ≥ –5

• x ≤ –5

Range?

• y ≤ –1

• y ≥ –1

• y < –1

• y ≥ –5

• y ≤ –5

Domain?

• (–3, 2]

• (–4, 0]

• [–3, 2)

• [–4, 0)

• (–4, 2]

Range?

• (–3, 2]

• (–4, 0]

• [–3, 2)

• [–4, 0)

• (–4, 2]

Range?

• (–5, ∞)

• (∞, –5)

• [–5, ∞)

• (–∞, 3)

• (–∞, –5)