Question

Tentukan persamaan garis yg melalui (-1,-4) dan sejajar dgn 4x+2y=7 !
(( tolong bantuannya yaaa ))

Answer 1

-a/b
-4/2 = -2
mx + c = y
-2(-1) + c = -4
2 + c = -4
c = -4 - 2
c = -6
y = -2x - 6

Answer 2

4x +2y = 7
2y = -4x +7
y = -4/2x +7/2
y = -2x +7/2
maka, m(gradien) = -2
y -y₁ = m(x -x₁)
y -(-4) = -2(x -(-1))
y +4 = -2x -2
y = -2x -2 -4
y = -2x -6
atau
2x +y +6 = 0