Another user previously answered this same question and had a good rating, his answer was as follows:
"{-9; -6.5; -5.2}"
Which I suppose would be answer D.
- Hope it helps.
Answer:
Step-by-step explanation:
Go to Khan Academy and type in Solving linear systems the matrices (video).
Answer:
its in the image below because im too lazy to write it down.
Step-by-step explanation:
The sign of the x-coordinate changes; the y-coordinate stays the same.