Question

Choose the equation of the horizontal line that passes through the point (-2, -1)

Answer 1

y = -1

Explanation:

A horizontal line has slope zero (0). Therefore its slope y-intercept form should look like:

`y=mx+b\\y=(0)x +b`

Therefore, using the given point (-2, -1) be on this line implies that it satisfies its equation:

`(-1)=(0)*(-2)+b\\-1=b`

Therefore, the equation of the line is:
`y=-1`