Question

What is the equation of a line that contains the points (2,-2) and (0, -2)?

y=0
x= -2
y=-2
x=0

Answer 1

y = - 2

Explanation:

The equation of a horizontal line parallel to the x- axis is

y = c

where c is the value of the y- coordinates the line passes through.

The points (2, - 2) and (0, - 2) have the same y- coordinate and therefore lie on a horizontal line with equation

y = - 2