Question

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

Answer 1

Answer:

option 4

Step-by-step explanation:

$perpendicular means = slope_1 \times sope_2 = -1$

                                $-2 \times slope_2 = -1\\\\slope_2 = \frac{1}{2}$

Answer 2

Answer:

1/2

Step-by-step 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