a) Is
(
−
1
,
−
4
)
\displaystyle {\left(-{1},-{4}\right)}
(
−
1
,
−
4
)
a solution to the red line?
Yes
No
b) Is
(
−
1
,
−
4
)
\displaystyle {\left(-{1},-{4}\right)}
(
−
1
,
−
4
)
a solution to the blue line?
Yes
No
c) Is
(
−
1
,
−
4
)
\displaystyle {\left(-{1},-{4}\right)}
(
−
1
,
−
4
)
a solution to the system?
Yes
No
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