Algebra Lessons 3-1 & 3-2 Combo Quiz v1
By Sam Schneider
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Last updated about 1 year ago
7 Questions
1 point
1
Question 1
1.
The chart below displays a mapping from X to Y. Identify all the elements of the domain and range.
The chart below displays a mapping from X to Y. Identify all the elements of the domain and range.
- -5
- -4
- -3
- -2
- -1
- 0
- 1
- 2
- 3
- 4
- 5
- 6
- Domain
- Range
1 point
1
Question 2
2.
Terrance is not sure, but he thinks that the relation from question 1 cannot be a function. When Emmy asked him for a reason, he pointed and said, "See, two distinct elements in the domain are mapped to the same element in the range."
A) What "mappings" is Terrance pointing at when he says this?B) Is Terrance's thinking correct? Give an assessment and explain your reasons.
Terrance is not sure, but he thinks that the relation from question 1 cannot be a function. When Emmy asked him for a reason, he pointed and said, "See, two distinct elements in the domain are mapped to the same element in the range."
A) What "mappings" is Terrance pointing at when he says this?
B) Is Terrance's thinking correct? Give an assessment and explain your reasons.
1.25 points
1.25
Question 3
3.
From the relations below, select all and only the relations that are functions.
From the relations below, select all and only the relations that are functions.
1 point
1
Question 4
4.
Evaluate f(7) for the function f(x)=\frac{1}{3}(x-1).
f(7)=
Evaluate f(7) for the function f(x)=\frac{1}{3}(x-1).
f(7)=
1 point
1
Question 5
5.
Select the linear function that matches the input/output pairs shown below:
Select the linear function that matches the input/output pairs shown below:
1 point
1
Question 6
6.
Which function matches the graph?
Which function matches the graph?
1 point
1
Question 7
7.
You decide to host a party at a nearby buffet-style restaurant. For special events, they charge $18 per person, plus a $100 event fee (regardless of how big or small your group is). The restuarant's maximum capacity is 120 people (per the Fire Marshall's orders!).
A) Use a linear equation to model the total event cost as a function of the number of guests.B) Describe the domain of the function.C) Describe the range of the function.
You decide to host a party at a nearby buffet-style restaurant. For special events, they charge $18 per person, plus a $100 event fee (regardless of how big or small your group is). The restuarant's maximum capacity is 120 people (per the Fire Marshall's orders!).
A) Use a linear equation to model the total event cost as a function of the number of guests.
B) Describe the domain of the function.
C) Describe the range of the function.