Answer: The possible rational roots are
±
1
,
±2
,
±
4
,
±
5
,
±
10
,
±
20
. The rational roots are
x
=
−
2
,
x
=
2
,
x
=
5
.
It would be 7 beacause the # after the decimal is the tenths pleace
The perpendicular line through (2, 1) is
.. y = (x -2)+1
or
.. y = x -1
True, each number is getting doubled, both sides are proportionally staying the same.