Figure DEFG is a square. The slope of DE is 3/2. What are the slopes of EF and FG? A. EF = -2/3 FG = -2/3 B. EF = -2/3 FG = 3/2C. EF = 3/2 FG = 3/2 D. EF = 0 FG = 2
Accepted Solution
A:
∵ DEFG is a square
DE is parallel to FG ⇒⇒ the slope of DE = slope of FG = 3/2
DE is perpendicular to EF ∴ the slope of EF = -1/(the slope of DE ) = -2/3
So, the correct choice is ( B. EF = -2/3 FG = 3/2)