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Licemer1 [7]
2 years ago
5

Ryan, Jessica, and Mark each solved this system of equations. All of their answers are different. Find and explain the mistakes.

What is the correct answer?
y = 3x + 2
6x – 2y = 10

Ryan’s answer:
I solved by adding the equations. The solution is .

y = 3x + 2 → 3x + y = 2
6x – 2y = 10 → 3x – y = 5
6x = 7
x =

6x – 2y = 10 → 6 – 2y = 10

7 – 2y = 10
–2y = –3

y = -

Jesse’s answer:
I used matrices. The solution is .



Mark’s answer:
I graphed the equations. The lines are parallel and do not intersect, so there is no solution.
Mathematics
2 answers:
Vika [28.1K]2 years ago
6 0
6x - 2y = 10
-2y = -6x + 10...reduce by dividing by -2
y = 3x - 5....slope = 3 and y int = -5

y = 3x + 2 ...slope = 3, y int = 2

These lines are parallel. Parallel lines will have the same slope, but different y int's. There is no solution to this because ur lines never intersect.

Mark's answer is correct
Anna [14]2 years ago
4 0

Answer:

Marks Answer is right

Step-by-step explanation:

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