Answer:
Step-by-step explanation:
The perpendicular to a horizontal line is a vertical one, and vice versa. The relevant equations are ...
... x = <constant> . . . . . a vertical line
... y = <constant> . . . . . a horizontal line
To make the line go through a particular point, the constant must be the coordinate of the point.
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1. Perpendicular to horizontal line y = -5 is vertical line x = 2 (through point (2, 7)).
2. Perpendicular to vertical line x = -5 is horizontal line y = 7 (through point (2, 7)).