A cirele with centre C has equation x+y -ár+4y+4 = 0. (a) Find (i) the coordinates of C, (ii) the radius of the circle. (b) Determine the set of values of k for which the line y = kx-3 does not intersect or touch the circle.
A cirele with centre C has equation x+y -ár+4y+4 = 0. (a) Find (i) the coordinates of C, (ii) the radius of the circle. (b) Determine the set of values of k for which the line y = kx-3 does not intersect or touch the circle.
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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Need help with part B, thanks.
Transcribed Image Text:A circle with centre C has equation x+y² -ár+4y+4 0.
(a) Find
(i) the coordinates of C,
(ii) the radius of the cirele.
(b) Determine the set of values of k for which the line y = kx -3 does not intersect or touch the
circle.
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