In Exercises 20 and 21 show that points P, Q, and R are collinear by showingthat PQ and QR have the same slope.20. P(–1, 3) Q(2, 7) R(8, 15)21. P(-8, 6) Q(-5, 5) R(4, 2)

Given: 20. P-1,3, Q2,7, R8,15 21. P-8,6, Q-5,5, R4,2 To Prove: Given point P,Q,R are collinear by…

Answered: In Exercises 20 and 21 show that points…

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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Exercises 21-50: Find the slope-intercept form for the line satisfying the conditions. 21. Passing through (-1, –4) and (1, 2) 22. Passing through (-1, 6) and (2, –3) 23. Passing through (4, 5) and (1, –3) 24. Passing through (8, –2) and (-2, 3) 25. y-intercept (0, 5), slope –7.8 26. y-intercept (0, -155), slope 5.6 27. x-intercept (90, 0). y-intercept (0, 45) 28. x-intercept (-6, 0), y-intercept (0, -8) 29. Slope -3, passing through (0, 5) 30. Slope , passing through (. -2)
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3. Find the equation of a line through (7,0) and (0, –5)? 4. What is the general equation of a line through (-3, 7) and (0,6)? 7 5. Determine the equation of a line through (8, –4) of slope 4
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In Exercises 20 and 21 show that points P, Q, and R are collinear by showing that PQ and QR have the same slope. 20. P(–1, 3) Q(2, 7) R(8, 15) 21. P(-8, 6) Q(-5, 5) R(4, 2)