Question

What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4.


-2
-1/2
1/2
2

Answer 1

2x+y=4
First, convert the equation to slope intercept form.
y= -2x+4
Now, you know the slope is -2.
To get a slope that is perpendicular, you need the invers of -2.

Answer 2

the slope of a line x the slope of the perpendicular line always = -1.