Domain and Range

Multiple Choice

What is the range in inequality notation?

• -2 ≤ x < 2

• 1 < x ≤ 5

• -2 ≤ x < 1

• 1 ≤ y < 5

Multiple Choice

• all real numbers

• y ≥ 0

• -5 < x <5

• y ≤ 0

Multiple Choice

What is the domain?

• x = 2

• (−∞ , ∞)

• y = 2

• none of these

2 more examples of domain and range

To find the domain, look at which possible x-values there are

On this graph, x can be any number that is greater than -5, so the domain is x>=-5

To find the range, find which y-values are possible

On this graph, y can be any number less than or equal to 5 so the range is y<=5

2 more examples of domain and range

When there is a white dot, that value is not included, a black dot is included

On this graph, that means -3 is not included but the value of 1 is so the domain is -3

Multiple Choice

Is 5 a possible x-value for this function?

• yes

• no

Multiple Choice

What is the Range?

• y ≥ 6
• y ≤ 6
• -10 ≤ y ≤ 6
• -10 ≤ x ≤ 6

Multiple Choice

What is the domain?

• {0, 1, 2, 15}

• (0, 1, 2, 3}

• {3, 7, 11, 15}

• {3, 7, 11, 3}

Multiple Choice

What is the domain of the given graph?

• x < -3

• x < -3

• x > - 3

• x > - 3

Multiple Choice

What is the domain for the following graph?

• x < 4

• -4 < x < 4

• -4 < x < 4

• all real numbers