Give the equation of a line that is perpendicular to the graph of

each equation. I do not understand.

y=12

Would I just write the opposite?

y = -12

3 answers

y = 12 is a horizontal line
A line perpendicular to y=12 is any vertical line.
For example x = 0 or x = 1578735 or x = any real number.
Wouldn't the answer be -1/12
Wouldn't the answer be y=.05x + -1-12