Quiz - Relations & Functions

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Quiz on Quiz - Relations & Functions, created by longj on 15/07/2014.
longj
Quiz by longj, updated more than 1 year ago
longj
Created by longj about 10 years ago
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Resource summary

Question 1

Question
A relation associates five foods to the food groups to which they belong: { (orange, fruit), (cheese, dairy) (broccoli, vegetable) (milk, dairy) (kiwi, fruit) } Which statement is true?
Answer
  • Vegetable is an element in the domain.
  • Orange is an element in the domain.
  • This relation is not a function.
  • Kiwi is an element in the range.

Question 2

Question
The equation M = 4.4n, relates the number of quarters, n, to its mass, M, in grams. What is the independent variable?
Answer
  • The mass of the quarters.
  • The value of the quarters.
  • The number of quarters.
  • Each quarter weighs 4.4 grams.

Question 3

Question
The height of a plane is a function of the time since take off. Identify the dependent variable?
Answer
  • height
  • speed
  • time
  • acceleration

Question 4

Question
Which set of ordered pairs represents a function?
Answer
  • { (1,1) (1,– 1) ( 4, 2) (4, –2) (9, 3) }
  • { (3, 4) (3, 5) (3, 6) (3, 7) (3, 8) }
  • { (2, 4) (3, 4) (4, 4,) (5, 4) (6,4) }
  • { (1, 2) (2, 3) (3,4) (4,5) (4, 6) }

Question 5

Question
What is the domain of the following relation?
Answer
  • . ( – 4, 4)
  • [– 4, 4)
  • (– 4, 4]
  • [– 4, 4]

Question 6

Question
The cost, C, in dollars, of renting a hall for the prom is given by the formula C(n) = 500 + 4n, where n is the number of students attending the prom. Calculate the cost of renting the hall if 70 students attend.
Answer
  • $108
  • $500
  • $780
  • $970

Question 7

Question
Hannah went for a run. The graph below shows her distance from home in km versus the time in minutes she was running for. Which of the following statements is correct?
Answer
  • She ran the entire time.
  • She went 1.5 km in the first 10 minutes
  • She took a break after 20 minutes
  • She headed home after 20 minutes.

Question 8

Question
Which of the following relations are also functions?
Answer
  • III only
  • I and III only
  • II and IV only
  • I, II, and IV only

Question 9

Question
What is the range?
Answer

Question 10

Question
What is the value of f(-1) + f(1) given the graph below of f(x)
Answer
  • 3
  • 2
  • 1
  • 0
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