period. 20+ 18+ 16+ 14+ 12+ 10+ Distance from home (miles) A ∞ 10 20 5 15 25 30 Time (minutes) a. Identify the vertical intercept of D(). Write it as an ordered pair and explain its meaning in this situation. b. Identify the horizontal intercepts of D(t). Write them as an ordered pairs and exp their meaning in this situation. Determine (15) and interpret its meaning in a complete sentence.

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter8: Graphing Quadratic Functions
Section: Chapter Questions
Problem 25CR
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Question
4. The function D(t) shown below represents Sally's distance from home over a 30-minute time
period.
20+
18+
16+
14-
12+
10+
8-
6 +
20
25
30
Time (minutes)
a. Identify the vertical intercept of D(t). Write it as an ordered pair and explain its
meaning in this situation.
b. Identify the horizontal intercepts of D(t). Write them as an ordered pairs and explain
their meaning in this situation.
c. Determine D(15) and interpret its meaning in a complete sentence.
d. For what value of t is D(t) = 5? Write a sentence explaining the meaning of your
answer.
e. Determine the practical domain of D(t).
f. Determine the practical range of D(1).
Distance from home (miles)
10
Transcribed Image Text:4. The function D(t) shown below represents Sally's distance from home over a 30-minute time period. 20+ 18+ 16+ 14- 12+ 10+ 8- 6 + 20 25 30 Time (minutes) a. Identify the vertical intercept of D(t). Write it as an ordered pair and explain its meaning in this situation. b. Identify the horizontal intercepts of D(t). Write them as an ordered pairs and explain their meaning in this situation. c. Determine D(15) and interpret its meaning in a complete sentence. d. For what value of t is D(t) = 5? Write a sentence explaining the meaning of your answer. e. Determine the practical domain of D(t). f. Determine the practical range of D(1). Distance from home (miles) 10
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