Mathematics, 12.11.2019 16:31 jeanine239
Line segment ab has a slope of 4/3 and contains point a (6,-5). what is the y-coordinate of point q(2, y) if qa is perpendicular to line segment ab.
answers:
y = −2
y = −1
y = 2
y = −3
Answers: 2
![\bf \stackrel{\textit{perpendicular lines have \underline{negative reciprocal} slopes}} {\stackrel{slope~of~AB}{\cfrac{4}{3}}\qquad \qquad \qquad \stackrel{reciprocal}{\cfrac{3}{4}}\qquad \stackrel{negative~reciprocal}{-\cfrac{3}{4}}}\impliedby \textit{slope of QA} \\\\[-0.35em] ~\dotfill](/tpl/images/0370/7549/1762b.png)
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Line segment ab has a slope of 4/3 and contains point a (6,-5). what is the y-coordinate of point q(...
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