Question:


What is the equation of a line that passes through points (0, 4) and (-4, -8)?




Answer:


y = mx +c 


for (0,4)


4 = 0 + c


so c = 4




for (-4,-8)


-8 = -4m + 4


- 12 = -4m 


so m = 3




finally Y = 3x + 4