ANSWER:

Explanation:
We have that the equation of line in its point-slope form is the following:

We must calculate the slope, we can do it using the following formula:

We replace the points (1, 7) and (-6, 7) and calculate the value of the slope, like this:

Since the slope is equal to 0, it would not be an equation of a line, since it is a constant, the line through both points would be:
