sarahsantana2005
contestada

ANSWER THIS QUESTION FAST AND I WILL GIVE YOU BRAINLEST

1.The graph shows two lines, M and N.


How many solutions are there for the pair of equations for lines M and N? Explain your answer.



2.Consider the following pair of equations:


y = x + 4

y = −2x − 2


Explain how you will solve the pair of equations by substitution. Show all the steps and write the solution in (x, y) form.


THE GRAPH IS FOR QUESTION 1.

Respuesta :

kawaiikitkat930

Answer:

{y,x} = {-6,-2}

Step-by-step explanation:

/ Solve equation [2] for the variable  y  

 [2]    y = 2x - 2

// Plug this in for variable  y  in equation [1]

  [1]    (2x-2) - x = -4

  [1]    x = -2

// Solve equation [1] for the variable  x  

  [1]    x = - 2

// By now we know this much :

   y = 2x-2

   x = -2

// Use the  x  value to solve for  y  

   y = 2(-2)-2 = -6

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