The [b]gradient[/b] of the line is a measure of its steepness.[br]The gradient of the line passing through [math]A\left(x_A,y_A\right)[/math] and [math]B\left(x_B,y_B\right)[/math] is [math]m=\frac{y_B-y_A}{x_B-x_A}[/math][br][br]The [b]y-intercept[/b] of a line is the value of y where the line cuts the y-axis. When the equation of the line is in the form [math]y=mx+c[/math], the y-intercept is [math]c[/math].[br][br]*new* The [b]x-intercept[/b] of a line is the value of x where the line cuts the x-axis.[br][br][br]In the next applet, you can modify m and c to see how that affects the line. Try different values for both of them and answer the questions.