I got 59 on my test and it was correct
5 would have to be the constant, because in algebraic terms, a constant is a term that contains only numbers and no variables, which would knock 2x right out of the question. Hope I helped.
Y=-1/4x
you can tell because the line is going down if you read it from left to right, so it is a negative slope, and if you looks at 2 points where the line crosses, it goes down one, and to the right four
rise over run