tolong ya nomor 15 pakai cara terima kasih

garis k memotong di (5, 0) dan (0,2)
(y-y1) / (y2-y1) = (x-x1) / (x2-x1)
(y-0) / (2-0) / (x-5) / (0-5)
y/2 = (x-5) / -5
--5y = 2(x-5)
-5y = 2x - 10
y= (2x-10) / -5
y = (-2/5)x + 2

m= y2-y1/x2-x1
m= 2-0/0-5
m= 2/-5
melalui (0,2)
(y-y1)=m(x-x1)
y-2=-2/5(x-0)
y-2=-2/5x (dikali 5)
5y-10=-2x
2x+5y=10