Find the slope of a line perpendicular to 2x-y-16

put the equation 2x - y = 16 in the form of y = mx + c

2x - y = 16

2x = 16 + y

y = 2x - 16

the slope of this line is 2. the slope of a line perpendicular to it would be the negative reciprocal of 2. in other words, it would multiply with 2 to give - 1.

you can form this equation with that info

2x = - 1

x = - 1/2

OR

you can flip and change the sign (numerator) of 2/1

2/1

= - 1/2