Answer two questions about Systems AAA and BBB:
System AAA \text{\quad}start text, end text System BBB
\begin{cases}-4x-6y=9\\\\3x+y=-4\end{cases}
⎩
⎪
⎪
⎨
⎪
⎪
⎧
−4x−6y=9
3x+y=−4
\begin{cases}-4x-6y=9\\\\-x-5y=5\end{cases}
⎩
⎪
⎪
⎨
⎪
⎪
⎧
−4x−6y=9
−x−5y=5
1) How can we get System BBB from System AAA?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Replace only the right-hand side of one equation with the sum/difference of the right-hand sides of both equations
(Choice B)
B
Replace one equation with the sum/difference of both equations
(Choice C)
C
Swap only the left-hand sides of both equations
(Choice D)
D
Swap the order of the equations
2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Yes
(Choice B)
B
No
khan academy