Question

Write the equation of the line that passes through (-5, -1)
and (2, -1).

Answer 1

y = -1

Explanation:

As we move from point (-5, -1)

to point (2, -1), x increases by 7 and y stays the same.

The slope of this line is thus m = [-1 - (-1)] / 7, or just m = 0.

This is a horizontal line. Its equation is y = -1.