5 / 16
m = rise/run = y2 - y1 / x2 - x1
m = 2-7 / (-4) - 12 = -5 / -16
m = 5 / 16
(3,0) and (0,6)
Y= -2x + 6
0= -2x + 6
-6/-2 = 3
X= 3
(3,0)
Y = -2(0) + 6
Y=6
(0,6)
Answer:

Step-by-step explanation:

Take
and
on the other side of the equal to sign:

Now solve for y:

Take 2 one the other side of the equation:

Hope this helps :)
So since, they are the same distance from zero, they should be the oppposite of each other so in other words, k=-h and h=-k
so k+h=(subisute)k-k=-h+h=0 because they cancel