Parallel, Perpendicular or neither practice

Question

What is the equation of the line that passes through the point (-3, 8) and has a slope of zero?

Answer 1

A line with a slope of zero is a horizontal line

The equation of a horizontal line is in the form y = k

To pass through (-3, 8) the equation is y = 8

Answer 2

A line with slope of zero is a horizontal line. Therefore, since the y value for that point is 8, the line would be y=8. That would be a horizontal line that will be parallel to the x-axis and will go through all x-values for y=8. Therefore, would go through the point (-3,8).

Answer 3

Slope zero has the line that is parallel with the x-axis and has an equation of the form y=0x+B=B. In our case we need B=8 and thus, the desired equation is y=8.