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.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter9: Quadratic Functions And Equations
Section9.6: Solving Quadratic Equations By Using The Quadratic Formula
Problem 64PFA
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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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