[b][size=150]Are they perpendicular?[br][/size][br][math]\overline{QR}[/math][/b] with [math]Q\left(-6,2\right)[/math] and [math]R\left(-1,8\right)[/math][br][math]\overline{ST}[/math] with [math]S\left(-3,6\right)[/math] and [math]T\left(-8,5\right)[/math][br][br][list=1][*]Use the [icon]/images/ggb/toolbar/mode_move.png[/icon] [b]Move[/b] tool in the [icon]https://www.geogebra.org/images/ggb/toolbar/mode_move.png[/icon] menu to drag all 4 points to the correct coordinates.[/*][*]Use the [b][icon]https://www.geogebra.org/images/ggb/toolbar/mode_slope.png[/icon][/b] [b]Slope[/b] tool in the [icon]/images/ggb/toolbar/mode_angle.png[/icon] menu to find the slope of each segment.[/*][*]Use the slopes to determine whether the segments are perpendicular.[/*][*]Answer the question below.[/*][/list]