Which graph represents a relation that is not a function?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Ineed your ! i was to turn this into pond first thing i gotta do is outline the inside with this plastic how big should i cut the plastic the height: 10 1/2” the length: 40” the width: 12” me !

Determine if the equation defines y as a function of x: 2xy = 1. yes o no