Question

Charmaine says that it is impossible to write an equation for a line parallel or perpendicular to the

line y = 5 because there is no slope. What is the error in Charmaine's thinking? Give an example of a
line parallel and an example of a line perpendicular to the line y = 5.

Answer 1

Below

Explanation:

It has a slope of zero.

y = 5 is a horizontal line ANY vertical line: x = n will be perpendicular to it ..... 'n' can be any number.....

Parallel lines will be of the form y = n where n is any number ( other than 5)