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Classify the system of equations.

[tex]\[
\begin{aligned}
-\frac{1}{3} x & = -6 - y \\
-1 + y & = \frac{1}{3} x - 5
\end{aligned}
\][/tex]

Click on the correct answer:
- A. intersecting
- B. parallel
- C. coincident


Sagot :

To classify the system of equations given by:
[tex]\[ \begin{aligned} -\frac{1}{3}x &= -6 - y \\ -1 + y &= \frac{1}{3}x - 5 \end{aligned} \][/tex]

we can analyze these equations step by step.

First, let's rewrite both equations in the standard form [tex]\(Ax + By = C\)[/tex].

Step 1: Rewrite the first equation in standard form.

Starting with the first equation:
[tex]\[ -\frac{1}{3}x = -6 - y \][/tex]

We can rearrange it as:
[tex]\[ -\frac{1}{3}x + y = -6 \][/tex]

Multiplying through by 3 to clear the fraction:
[tex]\[ -x + 3y = -18 \][/tex]

So, the first equation in standard form is:
[tex]\[ -x + 3y = -18 \][/tex]

Step 2: Rewrite the second equation in standard form.

Starting with the second equation:
[tex]\[ -1 + y = \frac{1}{3}x - 5 \][/tex]

We can rearrange it as:
[tex]\[ y - \frac{1}{3}x = -4 \][/tex]

Multiplying through by 3 to clear the fraction:
[tex]\[ 3y - x = -12 \][/tex]

So, the second equation in standard form is:
[tex]\[ -x + 3y = -12 \][/tex]

Step 3: Compare the two equations.

The system of equations in standard form is:
[tex]\[ \begin{aligned} -x + 3y &= -18 \\ -x + 3y &= -12 \end{aligned} \][/tex]

We can observe that both equations have the same left-hand side: [tex]\(-x + 3y\)[/tex]. However, their right-hand sides are different ([tex]\(-18\)[/tex] and [tex]\(-12\)[/tex]).

Step 4: Determine the type of system.

Since the two equations have the same coefficients for [tex]\(x\)[/tex] and [tex]\(y\)[/tex], but different constants, we conclude that they are parallel lines. Parallel lines do not intersect and therefore, the system of equations has no solutions.

Conclusion:

The system of equations is parallel.