Asystem of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the – y = 4x + 5 y = 4x – 5 2y = 8x – 10 – 2y = 8

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Asystem of equations has 1 solution. If 4x – y = 5 is one of the equations, which could be the – y = 4x + 5 y = 4x – 5 2y = 8x – 10 – 2y = 8 – 10​

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Thành Đạt 3 months 2021-07-31T16:51:31+00:00 1 Answers 5 views 0

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    2021-07-31T16:52:50+00:00

    Step-by-step explanation:

    step 1. The first equation 4x – y = 5 has a slope of 4. The 2nd equation simply cannot have the same slope for there to be 1 solution.

    step 2. -y = 4x + 5. This has a slope of -4 so “yes” it could work.

    step 3. y = 4x – 5. “no”.

    step 4. 2y = 8x – 10. The slope is 8/2 = 4. “no”.

    step 5. -2y = 8x – 10. The slope is 8/-2 = -4. “yes”.

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