Question
xjavascript:void(0)-value y-value if y=2x−5 y-value if y=x−3
0 −5 −3
1 −3 −2
2 −1 −1
3 1 0
Jian made a table showing some x- and y-values in a system of equations. Use his table to identify the solution for the system.
(1 point)
Responses
(3,0)
left parenthesis 3 comma 0 right parenthesis
There is an infinite number of solutions.
There is an infinite number of solutions.
There is no solution.
There is no solution.
(2,−1)
0 −5 −3
1 −3 −2
2 −1 −1
3 1 0
Jian made a table showing some x- and y-values in a system of equations. Use his table to identify the solution for the system.
(1 point)
Responses
(3,0)
left parenthesis 3 comma 0 right parenthesis
There is an infinite number of solutions.
There is an infinite number of solutions.
There is no solution.
There is no solution.
(2,−1)
Answers
GPT-4o mini
To identify the solution for the system of equations given in Jian's table, we need to analyze the two equations:
1. \( y = 2x - 5 \)
2. \( y = x - 3 \)
We can determine the solution to the system by finding the point (x, y) where both equations give the same y-value.
From the table, we can observe the y-values for different x-values:
- At \( x = 0 \): \( y = -5 \) (from both equations)
- At \( x = 1 \): \( y = -3 \) (from both equations)
- At \( x = 2 \): \( y = -1 \) (from both equations)
- At \( x = 3 \): \( y = 1 \) for the first equation and \( y = 0 \) for the second equation
Now, checking these values, we see they only match at:
- \( x = 2 \): \( y = -1 \) (this is in both equations)
We can also evaluate the equations to find the intersection point analytically by setting them equal to each other:
\[
2x - 5 = x - 3
\]
\[
2x - x = -3 + 5
\]
\[
x = 2
\]
Now substituting \( x = 2 \) back into either equation to find \( y \):
\[
y = 2(2) - 5 = 4 - 5 = -1
\]
Thus, the solution to the system of equations is:
\((2, -1)\)
So the correct answer is:
**(2, −1)**
1. \( y = 2x - 5 \)
2. \( y = x - 3 \)
We can determine the solution to the system by finding the point (x, y) where both equations give the same y-value.
From the table, we can observe the y-values for different x-values:
- At \( x = 0 \): \( y = -5 \) (from both equations)
- At \( x = 1 \): \( y = -3 \) (from both equations)
- At \( x = 2 \): \( y = -1 \) (from both equations)
- At \( x = 3 \): \( y = 1 \) for the first equation and \( y = 0 \) for the second equation
Now, checking these values, we see they only match at:
- \( x = 2 \): \( y = -1 \) (this is in both equations)
We can also evaluate the equations to find the intersection point analytically by setting them equal to each other:
\[
2x - 5 = x - 3
\]
\[
2x - x = -3 + 5
\]
\[
x = 2
\]
Now substituting \( x = 2 \) back into either equation to find \( y \):
\[
y = 2(2) - 5 = 4 - 5 = -1
\]
Thus, the solution to the system of equations is:
\((2, -1)\)
So the correct answer is:
**(2, −1)**