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Ivenika [448]
3 years ago
8

Solve the system of equations y = x + 7 and 2x + y = 10 using a graphical method. SOMEONE PLEASE HELP MEEEEEE!!!!!

Mathematics
2 answers:
sammy [17]3 years ago
8 0

The answer to this question is B, (1, 8).

Hope this helped!

yKpoI14uk [10]3 years ago
5 0

Answer:

B). (1,8)

Step-by-step explanation:

You can build graphical using both equation

  1. y=x+7
  2. y=-2x+10

1. When y=0, so x=-7 and when x=0, so y=7

2. When y=0, so x=5 and when x=0, so y=10  

So in the image graphic 1 is red and graphic 2 is blue and you can see they cross at (1,8)

To check

1=2 so, x+7=-2x+10 \\ 3x=3 \\ x=1

Replacing:

1. y=1+7=8 and 2. y= -2*1 +10=8

So (1,8)

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