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?
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.
The equation M = 4.4n, relates the number of quarters, n, to its mass, M, in grams. What is the independent variable?
The mass of the quarters.
The value of the quarters.
The number of quarters.
Each quarter weighs 4.4 grams.
The height of a plane is a function of the time since take off. Identify the dependent variable?
height
speed
time
acceleration
Which set of ordered pairs represents a function?
{ (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) }
What is the domain of the following relation?
. ( – 4, 4)
[– 4, 4)
(– 4, 4]
[– 4, 4]
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.
$108
$500
$780
$970
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?
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.
Which of the following relations are also functions?
III only
I and III only
II and IV only
I, II, and IV only
What is the range?
What is the value of f(-1) + f(1) given the graph below of f(x)
3
2
1
0
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