Lesson 7-1
[Pages:180]Lesson 7-1 Functions Lesson 7-2 Representing Linear Functions Lesson 7-3 Rate of Change Lesson 7-4 Constant Rate of Change and
Direct Variation Lesson 7-5 Slope Lesson 7-6 Slope-Intercept Form Lesson 7-7 Writing Linear Equations Lesson 7-8 Prediction Equations
Five-Minute Check (over Chapter 6) Main Idea and Vocabulary Example 1: Ordered Pairs and Tables as Functions Example 2: Use a Graph to Identify Functions Example 3: Real-World Example
? Determine whether relations are functions. ? Use functions to describe relationships between two
quantities.
? function ? vertical line test
Ordered Pairs and Tables as Functions A. Determine whether the relation is a function. Explain. (?3, ?3), (?1, ?1), (0, 0), (?1, 1), (3, 3)
Answer: No; ?1 in the domain is paired with both ?1 and 1 in the range.
Ordered Pairs and Tables as Functions B. Determine whether the relation is a function. Explain.
Answer: Yes; each x value is paired with only one y value.
A. Determine whether each relation is a function. Explain.
(2, 5), (4, ?1), (3, 1), (6, 0), (?2, ?2)
A. Yes; each x value is paired with only one y value.
B. No; ?2 is in the domain and in the range.
C. No; 2 in the domain is paired with 5 and ?2 in the range.
D. no; not a relation
A. A
B. B
0% 0% 0% 0%
C. C
A
B
C
D
D. D
B.
A. Yes; each x value is paired with only one y value.
B. No; 1 is in the domain and in the range.
C. No; 1 in the domain is paired with 4 and 2 in the range.
D. no; not a relation
A. A
B. B
0% 0% 0% 0%
C. C
A
B
C
D
D. D
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