Question

If the slope of line l is -2/5, what is the slope of line m so that line l is perpendicular to line m

Answer 1

-2/5

-5/2

2/5

or

5/2

Answer 2

If \(l_1\) and \(l_2\) are parallel, \(m_1\cdot m_2=-1\)

Answer 3

so….

Answer 4

negative reciprocal so yeah you're right

Answer 5

it will be 5/2. because for perpendicular line we have this condition (not for parallel) \[m_{1}\times m_{2}=-1\]

Answer 6

ohhh so the opposite

Answer 7

Perpendicular lines have negative inverse slopes.

Answer 8

always