Answer:
We can not see the image, so i will answer this in a general way.
We know that a linear equation can be written as:
y = a*x + b
Where a is the slope, and b is the y-intercept.
In this case, we know that this line has a slope equal to -2, then the line is:
y = -2*x + b
Now, suppose that in the image we can see that this line passes through the point (j, k)
Then we can replace x by j, and y by k in the line equation, to get:
k = -2*j + b
Now we can solve this for b:
b = k + 2*j
Then we can conclude that a line with a slope equal to -2, that passes through the point (j, k) is:
y = -2*x + (k + 2*j)