20. What is the locus of a point which is equidistant to the points (2, 4) and (-3, 5).   a. 10x + 2y +14=0   b. 10x+2y-14=0  c. 10x - 2y+14=0    d. 10x-2y-14=0

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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20. What is the locus of a point which is equidistant to the points (2, 4) and (-3, 5).  
a. 10x + 2y +14=0  
b. 10x+2y-14=0 
c. 10x - 2y+14=0   
d. 10x-2y-14=0  
 
21. Determine the equation of the locus of a point which moves so that the sum of the distance from points (-3, 0) and (3, 0) is always 10.  
a. 16x225y2400 = 0  
b. 16x225y2+4000 = 0  
c. 16x2 + 25y2-400=0  
d. 16x2 +25y2+400 = 0

30. Given the equation of the parabola as y2-4x-6y+9=0. Find the equation of its directrix 8. 
a. x-1  
b. x--1  
c. y-1  
d. y--1 
 
31. Find the length of the latus rectum of the parabola x-y+2=0.  
a. 0.25  
b. 1  
c. 2  
d. 4

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