mohon dijawab ya, nomor 5-7. maakasiih

5. titik koordinat garis K
  = (0,2) (1,0)
gradien = y/x = 2/1 =2 
karena condong ke kanan berarti (+) gradien 2

7. y-y1/y1-y2 = x-x1/x1-x2
   = y - (-3)/ -3 -4 = x-2/2-(-1)
   = y + 3/-7 = x-2/3
3 (y + 3) = -7 (x-2)
3y + 9 = -7x + 14
7x + 3y + 9 - 14 = 0
7x + 3y -5 = 0

maaf kalau salah