Represent the relation with a mapping diagram. Remember to label the domain and range in your diagram.
5 points
5
Question 4
4.
Is the relation in the graph a function? Use the vertical line test.
10 points
10
Question 5
5.
What is f(2) for the function f(x) = 4x + 1?
10 points
10
Question 6
6.
The domain of f(x), defined below, is {-4, -2, 0, 2, 4}. What is the range?
5 points
5
Question 7
7.
Vocabulary: Write y = 2x + 7 using function notation.
20 points
20
Question 8
8.
Compare and Contrast: You can use a mapping diagram or the vertical line test to tell if a relation is a function. Which method do you prefer? Explain.
10 points
10
Question 9
9.
Error Analysis: A student drew the dashed line on the graph shown and concluded that the graph represented a function. Is the student correct? Explain.
