For the floor plans given below, determine whether the side through the points (2, 3) and (11, 6) is perpendicular to the side through the points (2, 3) and (-3, 18).
Floor plans for a building have the four corners of a room located at the points (2, 3), (11, 6), (-3, 18), and (8, 21).
2007-12-04 07:06:19 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
slope = (y1-y2)/(x1-x2)
m1 = (6-3)/(11-2)=3/9 =1/3
m2 =(18-3)/(-3-2)=15/-5 = -3
if the two line are perpendicular, m1xm2 = -1
1/3 x -3 = -1 so the answer is yes.
2007-12-04 07:12:50 · answer #1 · answered by norman 7 · 0⤊ 0⤋
get the slope
(y2-y1)/(x2-x1)
(6-3)/(11-2)=3/9= 1/3
(18-3)/(-3-2) =15/-5 = -3 = -1/slope of the 1st line
so they r perpindcular to each other
2007-12-04 07:15:39 · answer #2 · answered by mbdwy 5 · 0⤊ 0⤋
see answer below.
2007-12-04 07:10:37 · answer #3 · answered by clavdivs 4 · 0⤊ 0⤋