Functions Review Quarter 1

What is the domain of the graph?

• {-4, 0, 2, 4}
• {-5, -4, -3, -1}
• {-5, -4, -3, -1, 0, 2, 4}
• All real numbers

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}
• D:{0, 1, 2, -4}
  R:{1, -3, -4}
• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

Evaluate f(-2) if f(x) = x²+ 3.

• -1
• 1
• 7
• -7

Which of these graphs represents a function?

• Z

• W

• X

• Y

What variable typically represents the domain?

• x

• y

What variable typically represents the range?

• x

• y

The set of all the inputs of a relation are called _____.

• domain

• range

The set of all the outputs of a relation are called _____.

• domain

• range

What is the range?

• [-3, 4]

• (-3, 4)

• (-3, 4]

• (-2, 3]

• [4, -3]