

Understanding Functions and Average Costs
Interactive Video
•
Mathematics
•
9th - 10th Grade
•
Practice Problem
•
Hard
Sophia Harris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the domain of a function?
The set of all possible output values
The set of all possible equations
The set of all possible input values
The set of all possible function pairs
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does f(x) represent in function notation?
f added to x
f as a function of x
f multiplied by x
f divided by x
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If f(x) = 3x + 5, what is f(2)?
10
11
9
8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the initial cost of the TV?
$400
$300
$200
$100
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How much does the TV cost in electricity per year?
$10
$20
$25
$15
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why can't we simply add the TV price and electrical cost to find the average annual cost?
Because they are measured in different units
Because they are both in dollars
Because they are both in years
Because they are both in time
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the average annual cost if the TV is owned for 1 year?
$345
$330
$315
$300
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