Hola mate
I don't know the answer but i will solve for you later.
Answer:

Step-by-step explanation:
recall for a line whose equation is
y = mx + b,
the slope of this line is m
the slope of a line that is perpendicular to this line is -
in this case,
m = -
hence -
=
Expressions do not have an equal sign (although they can have operators such as plus or minus).
is an expression.
is an equation since it has an equal sign.
A quadrilateral is a shape with 4 sides, regardless of their lengths, angles, or symmetry.
Therefore, a square is always a quadrilateral.
Answer:
The line has no slope. I hope this helps