Question

If the slope of a line is -2, what is the slope of a perpendicular line?

-2
2
-1/2
1/2

Answer 1

1/2

Explanation:

The slopes of perpendicular lines are negative reciproclas. That means their product equals -1.

If you know the slope of a line, to find the slope of a perpendicular line, flip the slope and change the sign.

Given line: slope = -2

-2 is the same as -2/1

Flip it: -1/2

Change the sign: 1/2

Answer: 1/2

Answer 2

option 4

Explanation:

`perpendicular means = slope_1 * sope_2 = -1\\`

`-2 * slope_2 = -1\\\\slope_2 = (1)/(2)`