Answer:
the first and last one
Step-by-step explanation:
Answer:
The friend's claim is not correct
Step-by-step explanation:
we know that
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal yo -1)
Example
A given line has a slope of
---> (is less than 1)
the slope of the line perpendicular to the given line is equal to
![m_1*m_2=-1](https://tex.z-dn.net/?f=m_1%2Am_2%3D-1)
substitute
![(1/2)*m_2=-1](https://tex.z-dn.net/?f=%281%2F2%29%2Am_2%3D-1)
![m_2=-2](https://tex.z-dn.net/?f=m_2%3D-2)
so
the perpendicular line don't have a positive slope
therefore
The friend's claim is not correct
-10 is the correct answer
Answer:
See the attached chart! This was mostly produced by trial and error!