Distance Formula[br][color=#0000ff]Blue ([/color][math]\Delta x[/math][color=#0000ff]) shows the [i]run [/i]of the line (PA) or length of base of the right angle triangle.[br][/color][color=#ff0000]Red ([/color][math]\Delta y[/math][color=#ff0000]) shows the [/color][i]rise [/i][color=#ff0000]of the line (QA) or length of the height right angle triangle.[br][br][/color][color=#38761d]Green([math]d=\sqrt{\left(\Delta x^2+\Delta y^2\right)}[/math]) shows the square root of both PA[sup]2[/sup] and QA[sup]2[/sup][/color]