Question 1014956
The basic linear formula passing through the point (h,k) is 

y - k = m(x-k), where m is the slope of the line.

Thus, the slope of the given line is -4.

The basis point would be the point (2, -4).

Now y+4 = -4x +8, by the distributive property.

So y = -4x +4, after transposition of the constant.  This is the linear equation in slope-intercept form.