## sydneyyy Group Title 23. Given , explain how to construct a square with sides of length AB. 24. Is the line through points P(–8, –10) and Q(–5, –12) perpendicular to the line through points R(9, –6) and S(17, –5)? Explain. 2 years ago 2 years ago

1. jazy

#1) I need more detail. #2) Find the slope of both lines. Of they are opposite reciprocals of each other, then they are perpendicular.

2. jazy

$Slope = \frac{ y2 - y1 }{ x2 - x1 }$

3. jazy

The slope for line PQ is:$PQ \to Slope = \frac{ -12 - (-10) }{ -5 - (-8) } = \frac{ -12 + 10 }{ -5 + 8 } = \frac{ 2 }{ 3 }$ Find the slope for line RS, if its -3/2 the lines are perpendicular.

4. jazy

Does this help @sydneyyy ?