If AD¯¯¯¯¯¯¯¯ is the altitude to BC¯¯¯¯¯¯¯¯, what is the slope of AD¯¯¯¯¯¯¯¯?

A=(0,1) B=(7,-2) C=(3,8)

A. 5/2
B. -2/5
C. -5/2
D. 2/5

1 answer

The slope of BC is -5/2
AD⊥BC, so ...