Which is the equation of a line with a slope of - 1/3and a y-intercept at (0, 1)?

This needs to be done quick you are studying different function tools and begin working with this function y=-160-9(x) use the equation to answer the question y=-160-9(x) what is the y value when x equals -13? y=-160-9(x)

What 2 forces allow things to fall ‍♀️‍♀️

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