Jawab:

Jawaban ada dipenjelasan ya

Penjelasan dengan langkah-langkah:

a) D(-3,1) dan sejajar garis X+4y=-5

x + 4y = -5

4y = -5 -x

y = (-x - 5) : 4

y = -1/4x - 5/4

m = -1/4 titik D (-3, 1)

y - y1 = m (x - x1)

y - 1 = -1/4 (x - (-3))

y = -1/4 (x +3) +1

y = -1/4x -3 +1

y = -1/4x -2

Atau y = -1/4x -2 dikalikan 4

4y = -x - 8

4y + x + 8 = 0

x + 4y +8 = 0ataux + 4y = -8

b) B(-4,0) dan sejajar garis  2×+3y=1

2x + 3y = 1

3y = 1 - 2x

3y = -2x + 1

y = (-2x + 1) : 3

y =-2/3x + 1/3

m = -2/3 melalui titik B (-4, 0)

y - y1 = m (x - x1)

y - 0 = -2/3 (x - (-4)

y = -2/3 (x +4)

y = -2/3x - 8/3

Atau y = -2/3x - 8/3 dikalikan 3

3y = -2x - 8

3y + 2x + 8 = 0

2x + 3y +8 = 0atau2x + 3y = -8