Intro to Functions

Which axis is the horizontal axis?

• z-axis
• x-axis
• y-axis
• coordinate axis

What test is used to determine if a graphed relation is a function?

• The Vertical Line Test
• The Horizontal Line Test
• The Diagonal Line Test
• The Litmus Test

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}

What is the range of the given relation?

• {1, 4, 5, 8}
• {-9, -5, 1, 7}
• {-9, -5, 1, 7, 4, 5, 8}
• {4, 5, 8}

What is the domain of the given relation:
{(-1, 2),(3, 5),(-5,7)}

• {2, 5, 7}
• {1, 2, 3, 5, -5, 7}
• The domain is not given.
• {-5, -1, 3}

What is the name of the center point on the coordinate plane?

• x-axis
• ordered pair
• origin
• quadrant I

A relation where every input yields one and only one output is called what?

• Relation
• Linear
• Exponential
• Function

What is the range of the following graph?

• R: {-5, -1,  0 , 1, 5}
• R: {-4, -2, 0, 3, 6}

A shoe company used packing boxes to ship four orders to retail stores.  The number of packing boxes needed to transport the pairs of shoes is a function of the number of pairs ordered for each delivery.  This function consists of only the ordered pairs:
(44, 3),  (60,4),  (72, 5), and (88, 6)
What is the domain for this situation?

• {44, 60, 72, 88}
• {44, 88}
• {3, 4, 5, 6, 44, 60, 72, 88}
• {3, 4, 5, 6}

What is the range of the graph shown?

• {x ∣ -3 ≤ x < 5}
• {x ∣ -3 < x ≤ 5}
• {y ∣ -5 < y ≤ 3}
• {y ∣ -5 ≤ y < 3}