Algebra Review

What is the domain of the graph?

• y≥1
• x ≥ 1
• All real numbers
• none of these

What is the range of the graph?

• y≥1
• x≥1
• All real numbers
• none of these

What is the domain of the graph?

• -7 ≤ x < 5
• -3 ≤ x < 1
• -3 ≤ y < 1
• -7 ≤ y < 5

What is the range?

• -4 < x ≤ 5
• -4 ≤ x < 5
• -3 < y < 3
• -3 ≤ y ≤ 3

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

Express the following in Interval Notation
-8 ≤ x < 8

• [-8, 8]
• [-8,8)
• (-8, 8]
• (-8, 8)

Express the following in Interval Notation
 -9 < x ≤ -4

• [-9, -4]
• (-9,-4]
• [-9, -4]
• (-9,-4)

Express the following in Interval Notation
-9 < x < -8.5

• [-9, -8.5]
• [-9, -8.5)
• (-9, -8.5]
• (-9, -8.5)

Express the following interval in Set notation:
[3, 5]

• 3 ≤ x ≤ 5
• 3 < x ≤ 5
• 3 ≤ x < 5
• 3 < x < 5

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7