Tlg ya kak no 5 cepat ya kak sma jlnnya

Rumus persamaan garis :
(y-y1) = m(x-x1)

a. (y+4) = -1/4(x-1)
= y+4 = -1/4x + 1/4
= 4y+16 = -x + 1
b. (y-1) = 2(x+5)
= y-1 = 2x + 10
= y = 2x + 11