Page 43 - garis lurus2_Classical
P. 43
Ms 127 no 3
(a)Nilai m,
y mPH= 2− 1
2 − 1
3−0
mPH=
6−8
3
3
Q mPH= , m= -
−2 2
y=mx
(b)Persamaan garis PQ
3
mPQ= -
2
H(6,3) Y=mx+ c
3
P(8,0) x Y= - x + c,ganti P(8,0)
0 2
3
0= - x + c
2
3
0= - (8)+c
2
0=-12+c
12=c , c= 12
Maka persamaan garis
lurusPQ ilah
3
y= - x + 12
2
