Question
Solve the system of equations graphed on the coordinate axes below. y, equals, minus, 5, x, minus, 8 y= −5x−8 y, equals, start fraction, 2, divided by, 3, end fraction, x, minus, 8 y= 3 2 x−8
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Answered by
GPT-4o mini
To solve the given system of equations, we have the following two equations:
1. \( y = -5x - 8 \)
2. \( y = \frac{2}{3}x - 8 \)
To find the points of intersection (the solution to the system), we can set the two equations equal to each other since both are equal to \(y\):
\[
-5x - 8 = \frac{2}{3}x - 8
\]
Next, simplify the equation. First, we can eliminate \(-8\) from both sides:
\[
-5x = \frac{2}{3}x
\]
Now, to eliminate the fraction, multiply every term by 3:
\[
-15x = 2x
\]
Next, we can add \(15x\) to both sides to isolate the \(x\) terms:
\[
0 = 17x
\]
Dividing by 17 gives us:
\[
x = 0
\]
Now that we have the value of \(x\), we can substitute it back into either of the original equations to find the corresponding \(y\)-coordinate. We'll use the first equation:
\[
y = -5(0) - 8 = -8
\]
Thus, the solution to the system of equations, which is the point of intersection, is:
\[
(x, y) = (0, -8)
\]
Therefore, the final answer is:
\[
\boxed{(0, -8)}
\]
1. \( y = -5x - 8 \)
2. \( y = \frac{2}{3}x - 8 \)
To find the points of intersection (the solution to the system), we can set the two equations equal to each other since both are equal to \(y\):
\[
-5x - 8 = \frac{2}{3}x - 8
\]
Next, simplify the equation. First, we can eliminate \(-8\) from both sides:
\[
-5x = \frac{2}{3}x
\]
Now, to eliminate the fraction, multiply every term by 3:
\[
-15x = 2x
\]
Next, we can add \(15x\) to both sides to isolate the \(x\) terms:
\[
0 = 17x
\]
Dividing by 17 gives us:
\[
x = 0
\]
Now that we have the value of \(x\), we can substitute it back into either of the original equations to find the corresponding \(y\)-coordinate. We'll use the first equation:
\[
y = -5(0) - 8 = -8
\]
Thus, the solution to the system of equations, which is the point of intersection, is:
\[
(x, y) = (0, -8)
\]
Therefore, the final answer is:
\[
\boxed{(0, -8)}
\]
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