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Solve the system of equations y = x + 7 and 2x + y = 10 using a graphical method. SOMEONE PLEASE HELP MEEEEEE!!!!!
A) (0, 5)
B) (1, 8)
C) (8, 1)
D) (17, 24

Answer :

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

Hope this helped!

davidlcastiblanco

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 [tex]y=0[/tex], so [tex]x=-7[/tex] and when [tex]x=0[/tex], so [tex]y=7[/tex]

2. When [tex]y=0[/tex], so [tex]x=5[/tex] and when [tex]x=0[/tex], so [tex]y=10[/tex]  

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, [tex]x+7=-2x+10 \\ 3x=3 \\ x=1[/tex]

Replacing:

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

So (1,8)

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