The value of this graph as is becoming clear! Now let's consider a case in which the relationship between variables is direct, or positive. The table in Figure 1.7 presents data comparing ice cream cone sales to outdoor temperatures. When temperature increases, so do ice cream cone sales, reflecting a direct relationship. Number of Point on Temperature Cones Sold Graph 12°C 20 000 24°C 50 000 Y 32°C 70 000 Figure 1.7 lce cream cone sales relative to temperature.

ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Question

Draw and label the economic model.

UNIT 1:
• If the price is increased to $3.50, how many cones
will most probably be sold?
• Why can the price of an ice cream cone never be
increased to $5 in this community?
The value of this graph as an economic tool
is becoming clear! Now let's consider a case
in which the relationship between variables is
direct, or positive. The table in Figure 1.7 presents
data comparing ice cream cone sales to outdoor
temperatures. When temperature increases, so
do ice cream cone sales, reflecting a direct
relationship.
QUESTIONS
temperature and ice cream sales using the graph in
the sales axis. Decide on an appropriate scale for the
temperature axis. Use your new graph to answer the
following questions.
1. If the temperature climbs to 38°C, how many ice
cream cones will be sold in your community? Mark
this as point A on your graph.
2. How many cones will be sold when the temperature
drops to 8°C? Mark this as point B on your graph.
3. What temperature would generate sales of 35 000
cones? Mark this as point C on your graph.
4. At what temperature would ice cream sales stop
completely in your community? Explain.
5. How does the slope of the curve help explain the kind
of relationship that exists between temperature and
ice cream sales and between price and sales? Explain.
Point on
Number of
Cones Sold
Temperature
Graph
12°C
20 000
24°C
50 000
Y
32°C
70 000
Figure 1.7 Ice cream cone sales relative to
temperature.
Transcribed Image Text:UNIT 1: • If the price is increased to $3.50, how many cones will most probably be sold? • Why can the price of an ice cream cone never be increased to $5 in this community? The value of this graph as an economic tool is becoming clear! Now let's consider a case in which the relationship between variables is direct, or positive. The table in Figure 1.7 presents data comparing ice cream cone sales to outdoor temperatures. When temperature increases, so do ice cream cone sales, reflecting a direct relationship. QUESTIONS temperature and ice cream sales using the graph in the sales axis. Decide on an appropriate scale for the temperature axis. Use your new graph to answer the following questions. 1. If the temperature climbs to 38°C, how many ice cream cones will be sold in your community? Mark this as point A on your graph. 2. How many cones will be sold when the temperature drops to 8°C? Mark this as point B on your graph. 3. What temperature would generate sales of 35 000 cones? Mark this as point C on your graph. 4. At what temperature would ice cream sales stop completely in your community? Explain. 5. How does the slope of the curve help explain the kind of relationship that exists between temperature and ice cream sales and between price and sales? Explain. Point on Number of Cones Sold Temperature Graph 12°C 20 000 24°C 50 000 Y 32°C 70 000 Figure 1.7 Ice cream cone sales relative to temperature.
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