The system of equations is graphed on the coordinate plane.

y=x−1
y=−2x−4

Enter the coordinates of the solution to the system of equations in the boxes.

The system of equations is graphed on the coordinate plane yx1 y2x4 Enter the coordinates of the solution to the system of equations in the boxes class=

Respuesta :

Answer:

(-1,-2)

Step-by-step explanation:

Hello!

The solution to the system is at the intersection between the two graphed lines.

Remember that a coordinate is written in (x,y) format, so we take the x-value of the points and the y-value of the point.

The coordinate is (-1, -2).

Answer is (-1, -2)
Step by step
You have two equations
y= x -1 (we will call equation A)
y= -2x-4 (we will call equation B)
Substitute equation A for the “y” value in equation B

x-1 = -2x -4
We need to isolate x to one side of the = so first we will add 1 to both sides
x-1+1 = -2x -4 +1
Combine like terms
x = -2x -3
Now add 2x to both sides
2x + x = -2x +2x -3
Combine like terms
3x = -3
Now solve for x by dividing both sides by 3
3/3x = -3/3
X= -1

Now we can solve for “y” by substituting our “x” value into equation A

y = -1 -1
y = -2

Now you can check your work by substituting your x and y values into with equation

A (-2) = -1 -1
A -2 = -2

B -2 = -2(-1) -4
B -2 = -2

Problem solved and graph is correct - see attached

Ver imagen driftecook
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