Name ______________________________ Date ______________________ Period ______
Practice Quiz 2.3 - 2.4
For problems 1-5: Write the corresponding ordered pairs and tell whether each relation is a function. Explain your reasoning.
Use a separate sheet of paper if you need more room to work. Attach to this paper!
Example:
1.
2.
(5, 20), (6, 10), (7, 10), (7, 10),
{
}
(8, 30), (10, 30)
This IS a function.
There is only 1 input for every output.
3.
4.
Determine whether each graph represents a function. Explain your reasoning.
6.
7.
5.
8.
Name ______________________________ Date ______________________ Period ______
Determine whether each given situation represents a function. Explain your answer.
9. Input: There are 3 showings of a play.
10. Input: Garrett bakes 2 dozen cookies for the bake sale.
Output: Over 200 people attend each showing.
Output: Twenty-four people buy a cookie
11. Input: Mrs. Robinson has a candy bucket.
Output: All of her students behaved for the
guest teacher and received a piece on Friday.
12. Input: Mrs. Alexander made an announcement.
Output: Only the 8th graders heard it.
Identify the dependent quantity and the independent quantity.
13. Rosita’s per rabbits eat 12 ounces
14. Phillip enjoys rock climbing on the weekends. At some of
of rabbit food every day.
the less challenging locations he can climb upwards of
12 feet per minute.
I:
I:
D:
D:
Determine whether each equation is a function. If it is not a function, explain why not. (Graph is there if you need it.)
15. 𝑦 = 3𝑥 + 2
16. 𝑦 2 = 𝑥
x
y
x
y
Complete the table and create a graph for each given problem situation. In the “Expression” row of the table, write a variable to
represent the independent quantity in the first column and write an expression to represent the dependent quantity in terms of
the independent quantity in the second column.
17.
Name ______________________________ Date ______________________ Period ______
18.
Name ______________________________ Date ______________________ Period ______