Westonci.ca is the best place to get answers to your questions, provided by a community of experienced and knowledgeable experts. Our platform provides a seamless experience for finding reliable answers from a network of experienced professionals. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.
Sagot :
To determine which of the given systems of equations has the solution [tex]\((-1, 5)\)[/tex], we need to substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into each system and see which one satisfies all equations in that system.
### System 1:
[tex]\[ \begin{array}{l} y = 3x + 8 \\ y = -x + 4 \end{array} \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into both equations:
1. [tex]\(5 = 3(-1) + 8 \)[/tex]
[tex]\[ 5 = -3 + 8 = 5 \quad \text{True} \][/tex]
2. [tex]\(5 = -(-1) + 4 \)[/tex]
[tex]\[ 5 = 1 + 4 = 5 \quad \text{True} \][/tex]
Both equations are satisfied. So, System 1 has the solution [tex]\((-1, 5)\)[/tex].
### System 2:
[tex]\[ y = -x - 4 \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into the equation:
[tex]\[ 5 = -(-1) - 4 \][/tex]
[tex]\[ 5 = 1 - 4 = -3 \quad \text{False} \][/tex]
The equation is not satisfied, so System 2 does not have the solution [tex]\((-1, 5)\)[/tex].
### System 3:
[tex]\[ \begin{array}{l} y = 3x - 8 \\ y = -x + 4 \end{array} \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into both equations:
1. [tex]\(5 = 3(-1) - 8 \)[/tex]
[tex]\[ 5 = -3 - 8 = -11 \quad \text{False} \][/tex]
2. [tex]\(5 = -(-1) + 4 \)[/tex]
[tex]\[ 5 = 1 + 4 = 5 \quad \text{True} \][/tex]
The first equation is not satisfied. So, System 3 does not have the solution [tex]\((-1, 5)\)[/tex].
### System 4:
[tex]\[ \begin{array}{l} y = 3x - 8 \\ y = -x - 4 \end{array} \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into both equations:
1. [tex]\(5 = 3(-1) - 8 \)[/tex]
[tex]\[ 5 = -3 - 8 = -11 \quad \text{False} \][/tex]
2. [tex]\(5 = -(-1) - 4 \)[/tex]
[tex]\[ 5 = 1 - 4 = -3 \quad \text{False} \][/tex]
Both equations are not satisfied. So, System 4 does not have the solution [tex]\((-1, 5)\)[/tex].
Thus, the correct system of equations that has the solution [tex]\((-1, 5)\)[/tex] is:
[tex]\[ \begin{array}{l} y = 3x + 8 \\ y = -x + 4 \end{array} \][/tex]
### System 1:
[tex]\[ \begin{array}{l} y = 3x + 8 \\ y = -x + 4 \end{array} \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into both equations:
1. [tex]\(5 = 3(-1) + 8 \)[/tex]
[tex]\[ 5 = -3 + 8 = 5 \quad \text{True} \][/tex]
2. [tex]\(5 = -(-1) + 4 \)[/tex]
[tex]\[ 5 = 1 + 4 = 5 \quad \text{True} \][/tex]
Both equations are satisfied. So, System 1 has the solution [tex]\((-1, 5)\)[/tex].
### System 2:
[tex]\[ y = -x - 4 \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into the equation:
[tex]\[ 5 = -(-1) - 4 \][/tex]
[tex]\[ 5 = 1 - 4 = -3 \quad \text{False} \][/tex]
The equation is not satisfied, so System 2 does not have the solution [tex]\((-1, 5)\)[/tex].
### System 3:
[tex]\[ \begin{array}{l} y = 3x - 8 \\ y = -x + 4 \end{array} \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into both equations:
1. [tex]\(5 = 3(-1) - 8 \)[/tex]
[tex]\[ 5 = -3 - 8 = -11 \quad \text{False} \][/tex]
2. [tex]\(5 = -(-1) + 4 \)[/tex]
[tex]\[ 5 = 1 + 4 = 5 \quad \text{True} \][/tex]
The first equation is not satisfied. So, System 3 does not have the solution [tex]\((-1, 5)\)[/tex].
### System 4:
[tex]\[ \begin{array}{l} y = 3x - 8 \\ y = -x - 4 \end{array} \][/tex]
Substitute [tex]\(x = -1\)[/tex] and [tex]\(y = 5\)[/tex] into both equations:
1. [tex]\(5 = 3(-1) - 8 \)[/tex]
[tex]\[ 5 = -3 - 8 = -11 \quad \text{False} \][/tex]
2. [tex]\(5 = -(-1) - 4 \)[/tex]
[tex]\[ 5 = 1 - 4 = -3 \quad \text{False} \][/tex]
Both equations are not satisfied. So, System 4 does not have the solution [tex]\((-1, 5)\)[/tex].
Thus, the correct system of equations that has the solution [tex]\((-1, 5)\)[/tex] is:
[tex]\[ \begin{array}{l} y = 3x + 8 \\ y = -x + 4 \end{array} \][/tex]
Thank you for your visit. We are dedicated to helping you find the information you need, whenever you need it. Thanks for using our platform. We aim to provide accurate and up-to-date answers to all your queries. Come back soon. Keep exploring Westonci.ca for more insightful answers to your questions. We're here to help.