bantuin bos nomer 8 9.

1) • A(-1/2,0)
• B(0,2)
Metode silang sumbu:
b(x) + a(y) = b(a)
2x + (-1/2y) = 2(-1/2)
2x - 1/2y = -1 || x2
4x - y = -2
y = 4x + 2
Jwaban: C

2) y = 2x + 1
2x - y + 1 = 0
m = 2
• Persamaan Garis:
y - b = m(x - a)
y - 4 = 2(x - 3)
y - 4 = 2x - 6
2x - y = 2
2x - y - 2 = 0