bananajohana64 bananajohana64
  • 03-02-2018
  • Mathematics
contestada

The graph represents this system of equations.
y=2x-4
y=1-3x
What is the solution to the system of equations? (–4, 1) (–2, 1) (1, –4) (1, –2)

Respuesta :

YunXin
YunXin YunXin
  • 03-02-2018
y=2x-4
y=1-3x
1-3x=2x-4
5x=5
x=1
y=2x-4
y=-2
(1, -2)
Answer Link
lisboa lisboa
  • 20-06-2019

Answer:

(1, -2)

Step-by-step explanation:

The graph represents this system of equations.  

y=2x-4  

y=1-3x

To solve the system of equations we replace y in second equation by [tex]2x-4[/tex]

[tex]2x-4=1-3x[/tex]

add 3x on both sides

[tex]5x -4= 1[/tex]

add 4 on both sides

[tex]5x=5[/tex], divide both sides by 5

x=1

Now we find out y

[tex]y=2x-4[/tex]

[tex]y=2(1)-4=-2[/tex]

Solution is (1,-2), the graph is attached below

Ver imagen lisboa
Answer Link

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