BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071
BuyFind

Precalculus: Mathematics for Calcu...

6th Edition
Stewart + 5 others
Publisher: Cengage Learning
ISBN: 9780840068071

Solutions

Chapter 1.8, Problem 34E
To determine

To calculate: The closer point among C(6,3) and D(3,0) to the point E(2,1) .

Expert Solution

Answer to Problem 34E

Thecloser point tothe point E(2,1) is C(6,3) .

Explanation of Solution

Given information:

The points C(6,3) and D(3,0) .

Formula used:

Distance d(A,B) between two points A=(x1,y1) and B=(x2,y2) in the Cartesian plane is denoted by d(A,B)=(x2x1)2+(y2y1)2 .

Calculation:

Consider the provided set of points C(6,3) and D(3,0) . Also the point E(2,1) .

Recall that the distance d(A,B) between two points A=(x1,y1) and B=(x2,y2) in the Cartesian plane is denoted by d(A,B)=(x2x1)2+(y2y1)2 .

Evaluate the distance between C(6,3) and E(2,1) .

  d(C,E)=(2(6))2+(13)2=16+4=20

Next evaluate the distance between D(3,0) and E(2,1) .

  d(D,E)=(23)2+(10)2=25+1=26

Observe that d(D,E)>d(C,E) .

That is the distance between the point C(6,3) and the E(2,1) is less than the distance the point D(3,0) and the E(2,1) .

Therefore, the point C(6,3) is near to E(2,1) .

Thus, the closer point to the point E(2,1) is C(6,3) .

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