Someone please help me i’ll give brainlest

How do you use the elimination method for this question? explain, because i really want to understand!

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)

Write a similarity statement for the similar triangles. afgh ~ a