Look at the equation top left. Calculate the x- and y- intercepts of this line. Tap and then tap&drag the purple + so that purple point is on the x-intercept of this line. Tap and then tap&drag the teal + so that the teal point is on the y-intercept. Then tap [i]Check Answer[/i] to see if your intercepts are correct. Tap [i]Show Line[/i] to graph the line. It should pass through both intercepts. Tap and then tap&drag the sliders to get a new equation of a line.