tolong jawaban + cara?? please!!!

Titik A(4,0)
Titik B(0,-3)


Titik C(-4,0)
Titik D(0,-2)

A) Titik A = (5,0)
Titik B = (0,-3)
M = y2-y1
--------
X2-x1
= -3 - 0
--------
0 - 5
= -3/-5
= 3/5

B) Titik C = (-4,0)
Titik D = (0,-2)
M = y2-y1
--------
X2-x1
= -2-0
------
0-(-4)
= -2/4