Tolong di jwab ya kaaa
Jawab:
gradien g = m1 = 5/3
gradien garis tegak lurus g = m2 = – 1/m1 = – 3/5
melalui A (1,-2) ,
pers garis y – y1 = m( x- x1)
y + 2 = – 3/5 ( x – 1)
5(y +2) = – 3 (x – 1)
5y +10 =- 3x+ 3
3x + 5y = 3- 10
3x + 5y = – 7