1. Find the slope of the curve x+ y² -6x-4y-21 0 at (0, 7). Compute also the tangent line and normal line at (0,7)

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
Question
REVIEW MATHEMATICS_m..
Application Problems
1. Find the slope of the curve x+ y-6x-4y-21 0 at (0, 7).
Compute also the tangent line and normal line at (0,7)
2. Determine the radius of curvature at (1,2) of the curve y-4x 0.
3. The number of newspaper copies distributed is given by C 50t-
200t + 10000, where t is in years. Find the minimum number of
copies distributed from 2016 to 2021.
4. A boatman is at A, which is 4.5km from the nearest point B on a
straight shore BM. He wishes to reach, in minimum time, a point C
situated on the shore 9km from B, how far should he land if he can
row at the rate of 6kph and walk at the rate of 7.5 kph.
Transcribed Image Text:REVIEW MATHEMATICS_m.. Application Problems 1. Find the slope of the curve x+ y-6x-4y-21 0 at (0, 7). Compute also the tangent line and normal line at (0,7) 2. Determine the radius of curvature at (1,2) of the curve y-4x 0. 3. The number of newspaper copies distributed is given by C 50t- 200t + 10000, where t is in years. Find the minimum number of copies distributed from 2016 to 2021. 4. A boatman is at A, which is 4.5km from the nearest point B on a straight shore BM. He wishes to reach, in minimum time, a point C situated on the shore 9km from B, how far should he land if he can row at the rate of 6kph and walk at the rate of 7.5 kph.
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