Question

Lines a and b are perpendicular. the slope of line a is -2. what is the slope of line b

Answer 1

m_b = 1/2

Explanation:

The slope of a perpendicular equation is always the negative inverse of the original slope.
`m_(p) =-((1)/(m) )`

This basically mean:

1. flip the sign -2 --> 2 =
`(2)/(1)`

2. then flip the numerator and denominator
`(2)/(1)` -->
`(1)/(2)`