Question 1179504
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(1) Use the given points to find the slope of QR.<br>
(2) Determine the slope of any line perpendicular to QR.<br>
(3) The altitude through P is contained in the line perpendicular to QR and passing through P.  You have a slope and a point; use the point-slope form of the equation {{{y-y1=m(x-x1)}}} to find the solution.<br>