Graph y=0.4x. Which of the following statements are true? Choose all answers that apply: A The equation represents a proportional relationship. B The unit rate of change of y with respect to x is 0.4. The slope of the line is 0.4. A charge of 2 units in x results in a change of 0.2 units in y. A change in 3 units in x results in a change of 1.2 units in y. This is in Khan Academy by the way