Y=-4x

The equation Y = -4x represents a linear function where the coefficient of x is -4. This means that the graph of this function is a straight line with a slope of -4, meaning that for every unit increase in x, y decreases by 4 units.

To prepare for university exams related to this topic, make sure to practice plotting the graph of linear functions like Y = -4x, understanding their slop and intercepts, and solving problems involving linear equations. You can also practice finding the equation of a line given two points, determining whether two lines are parallel or perpendicular, and solving systems of linear equations. Additional practice with word problems involving linear equations can also be beneficial for your exam preparation.