Question

How do you find the slope that is perpendicular to the line `y=x-3`?

Answer 1

`m_1 = 1, :. m_2 = -1`

Explanation:

The equation is in the form `y = mx + c`.
`m` indicates the slope.

The coefficient of `x` is 1.so the slope = 1.

Slopes that are perpendicular are negative reciprocals of each other.

`m_1 = 1, :. m_2 = -1`

(turn the slope upside down and change the sign.)

NOte `1 xx-1 = -1`