7. Two boats on a lake head away from each other at a constant rate. The distance between the boats over time is given by the function graphed at the right. Distance Between Two Boats 160 140 (60, 120) 120 100 Rate of change: 80 60 40 20 Initial value: 10 20 30 40 50 60 70 80 90100 Time (in seconds) Distance (in meters)
7. Two boats on a lake head away from each other at a constant rate. The distance between the boats over time is given by the function graphed at the right. Distance Between Two Boats 160 140 (60, 120) 120 100 Rate of change: 80 60 40 20 Initial value: 10 20 30 40 50 60 70 80 90100 Time (in seconds) Distance (in meters)
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Answer 7 and 8 please, make the explanations clear
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Interpret the rate of change and initial value with appropriate units.
A Markup
7.
Two boats on a lake head away from each other at a
Distance Between
Two Boats
Comment
constant rate. The distance between the boats over time
160
is given by the function graphed at the right.
140
(60, 120)
120
T Text Box
14
E 100
Rate of change:
80
8 60
a 40
÷ Equation
20
Initial value:
0 10 20 30 40 50 60 70 80 90 100
Time (in seconds)
Drawing
O Shapes
A utility company charges customers for electricity
monthly according to the number or kilowatt-hours used.
The function relating the monthly cost and electricity
usage is graphed at the right.
8.
Electricity Cost
16
Eraser
14
12
(50, 14)
10
Add Media
(0, 8)
Rate of change:
Signature
Initial value:
5 10 15 20 25 30 35 40 45 50 55
Kilowatt-Hours
Cost (in dollars)
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