Solve the following word problems involving equations of circle. 1. Molly is at the bank located at (-3, -4). She must drive to the grocery store next which is at (8, -4). Determine the distance she will have to drive?

College Algebra (MindTap Course List)
12th Edition
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Author:R. David Gustafson, Jeff Hughes
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Chapter2: Functions And Graphs
Section2.4: Writing And Graphing Equations Of Lines
Problem 77E: Find the equation of the line perpendicular to the line y=3 and passing through the midpoint of the...
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A. Solve the following word problems involving equations of circle.
1. Molly is at the bank located at (-3, -4). She must drive to the grocery
store next which is at (8, -4). Determine the distance she will have to
drive?
2. A radio tower services a 10 km radius. You stop your car 4 km east
and 9 km north of the tower.
a. Write and graph an equation to represent this situation if the
radio tower is at the origin of the coordinate system.
b. Will you be able to receive radio waves from the tower?
Explain.
B. Solve the following word problems involving equations of circle.
1. If Raymond's house is at (5, 8) and his friend Ely's house is at (5,1),
and each square on the grid represents one block. How many blocks
would Jorge have to ride his bike to get to Ely's house?
2. A particular cell phone tower is designed to service a 12 km radius.
The tower is located at(-3,5)on a coordinate plane whose units
represent kilometers.
a. What is the standard equation of the outer boundary of the
region serviced by the tower?
b. Is a cell phone user at (8,0) within the service range?
Transcribed Image Text:A. Solve the following word problems involving equations of circle. 1. Molly is at the bank located at (-3, -4). She must drive to the grocery store next which is at (8, -4). Determine the distance she will have to drive? 2. A radio tower services a 10 km radius. You stop your car 4 km east and 9 km north of the tower. a. Write and graph an equation to represent this situation if the radio tower is at the origin of the coordinate system. b. Will you be able to receive radio waves from the tower? Explain. B. Solve the following word problems involving equations of circle. 1. If Raymond's house is at (5, 8) and his friend Ely's house is at (5,1), and each square on the grid represents one block. How many blocks would Jorge have to ride his bike to get to Ely's house? 2. A particular cell phone tower is designed to service a 12 km radius. The tower is located at(-3,5)on a coordinate plane whose units represent kilometers. a. What is the standard equation of the outer boundary of the region serviced by the tower? b. Is a cell phone user at (8,0) within the service range?
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