Question

Persamaan garis yg melalui titik (7,2) tegak lurus dengan garis Xper4 + Yper3 =2 adalah??
sama cara yaa

Answer 1

Tegak lurus x/4+y/3=2
                   3x+4y=24
                         4y=24-3x
                           y=6-3/4x ⇒m1=-3/4
                   m1 . m2 = -1
                  -3/4 m2 = -1
                        -3m2= -4
                           m2=4/3
persamaan garis melalui (7,2)
y-y1=m(x-x1)
y-2=4/3(x-7)
y-2=4/3x-28/3 .3
3y-6=4x-28
-4x+3y+22=0