Question
Use the image to answer the question.
A coordinate plane shows four quadrants with both the axes ranging from negative 5 to 5 in unit increments. Two points are plotted, with a dashed line passing through them. The dashed line passes through two points marked at left parenthesis negative 2 comma 0 right parenthesis and left parenthesis 0 comma 4 right parenthesis. The line extends beyond both points. The area above the dashed line is shaded.
Given the graph for the solution set of an inequality, identify the coefficients for x
and y
in the inequality.
(1 point)
y>
x+8
A coordinate plane shows four quadrants with both the axes ranging from negative 5 to 5 in unit increments. Two points are plotted, with a dashed line passing through them. The dashed line passes through two points marked at left parenthesis negative 2 comma 0 right parenthesis and left parenthesis 0 comma 4 right parenthesis. The line extends beyond both points. The area above the dashed line is shaded.
Given the graph for the solution set of an inequality, identify the coefficients for x
and y
in the inequality.
(1 point)
y>
x+8
Answers
Answer
no
Answered by
GPT-4o mini
To find the coefficients for \(x\) and \(y\) in the given inequality \(y > x + 8\) based on the graph described, we can analyze the points that the dashed line passes through.
The two points marked on the dashed line are \((-2, 0)\) and \((0, 4)\).
1. **Calculate the slope of the line**:
The slope \(m\) is calculated using the formula:
\[
m = \frac{y_2 - y_1}{x_2 - x_1}
\]
Where \((x_1, y_1) = (-2, 0)\) and \((x_2, y_2) = (0, 4)\):
\[
m = \frac{4 - 0}{0 - (-2)} = \frac{4}{2} = 2
\]
2. **Use point-slope form to find the equation of the line**:
Using the point-slope form \(y - y_1 = m(x - x_1)\):
\[
y - 0 = 2(x + 2)
\]
This simplifies to:
\[
y = 2x + 4
\]
3. **Rearranging the equation**:
We can express this in the standard linear form:
\[
2x - y + 4 = 0
\]
Rearranging gives:
\[
-y = -2x - 4
\]
Flipping the signs:
\[
y = 2x + 4
\]
4. **Identifying the inequality**:
Since the area above the dashed line is shaded, the inequality is:
\[
y > 2x + 4
\]
Thus, the coefficients for \(x\) and \(y\) in the inequality are:
- Coefficient of \(x\) is \(2\)
- Coefficient of \(y\) is \(-1\) (since it is \(y - 2x - 4 > 0\))
Therefore, the complete answer is:
**Coefficients for \(x\) and \(y\) in the inequality:** \(y > 2x + 4\).
The two points marked on the dashed line are \((-2, 0)\) and \((0, 4)\).
1. **Calculate the slope of the line**:
The slope \(m\) is calculated using the formula:
\[
m = \frac{y_2 - y_1}{x_2 - x_1}
\]
Where \((x_1, y_1) = (-2, 0)\) and \((x_2, y_2) = (0, 4)\):
\[
m = \frac{4 - 0}{0 - (-2)} = \frac{4}{2} = 2
\]
2. **Use point-slope form to find the equation of the line**:
Using the point-slope form \(y - y_1 = m(x - x_1)\):
\[
y - 0 = 2(x + 2)
\]
This simplifies to:
\[
y = 2x + 4
\]
3. **Rearranging the equation**:
We can express this in the standard linear form:
\[
2x - y + 4 = 0
\]
Rearranging gives:
\[
-y = -2x - 4
\]
Flipping the signs:
\[
y = 2x + 4
\]
4. **Identifying the inequality**:
Since the area above the dashed line is shaded, the inequality is:
\[
y > 2x + 4
\]
Thus, the coefficients for \(x\) and \(y\) in the inequality are:
- Coefficient of \(x\) is \(2\)
- Coefficient of \(y\) is \(-1\) (since it is \(y - 2x - 4 > 0\))
Therefore, the complete answer is:
**Coefficients for \(x\) and \(y\) in the inequality:** \(y > 2x + 4\).
Answered by
GPT-4o mini
I apologize for any confusion. Let's start over and address the problem more clearly.
Based on your description, it seems the dashed line passes through the coordinates \((-2, 0)\) and \((0, 4)\).
1. **Equation of the Line**:
We first find the slope between the two points:
\[
\text{slope} = \frac{y_2 - y_1}{x_2 - x_1} = \frac{4 - 0}{0 - (-2)} = \frac{4}{2} = 2.
\]
Now we use the point-slope form of the equation of a line:
\[
y - y_1 = m(x - x_1).
\]
Using point \((0, 4)\):
\[
y - 4 = 2(x - 0) \implies y = 2x + 4.
\]
2. **Rearranging the Equation**:
The equation in standard form is:
\[
-2x + y - 4 = 0 \implies 2x - y + 4 = 0 \implies y = 2x + 4.
\]
3. **Setting Up the Inequality**:
Since the area above the dashed line is shaded, we denote this as:
\[
y > 2x + 4.
\]
Based on the standard form of the line \(y = mx + b\), where \(m\) is the coefficient of \(x\), we find:
- Coefficient of \(x\) is \(2\),
- Coefficient of \(y\) when rearranged to the form \(Ax + By > C\) is \(-1\) (which comes from the rearranged equation \(2x - y + 4 > 0\)).
So the inequality can be rewritten to show coefficients explicitly:
### Answer:
The coefficients in the inequality \(y > 2x + 4\) are:
- Coefficient of \(x\): \(2\),
- Coefficient of \(y\): \(-1\).
If there are further specifics to clarify or adjust about my response or if you have another question, please let me know!
Based on your description, it seems the dashed line passes through the coordinates \((-2, 0)\) and \((0, 4)\).
1. **Equation of the Line**:
We first find the slope between the two points:
\[
\text{slope} = \frac{y_2 - y_1}{x_2 - x_1} = \frac{4 - 0}{0 - (-2)} = \frac{4}{2} = 2.
\]
Now we use the point-slope form of the equation of a line:
\[
y - y_1 = m(x - x_1).
\]
Using point \((0, 4)\):
\[
y - 4 = 2(x - 0) \implies y = 2x + 4.
\]
2. **Rearranging the Equation**:
The equation in standard form is:
\[
-2x + y - 4 = 0 \implies 2x - y + 4 = 0 \implies y = 2x + 4.
\]
3. **Setting Up the Inequality**:
Since the area above the dashed line is shaded, we denote this as:
\[
y > 2x + 4.
\]
Based on the standard form of the line \(y = mx + b\), where \(m\) is the coefficient of \(x\), we find:
- Coefficient of \(x\) is \(2\),
- Coefficient of \(y\) when rearranged to the form \(Ax + By > C\) is \(-1\) (which comes from the rearranged equation \(2x - y + 4 > 0\)).
So the inequality can be rewritten to show coefficients explicitly:
### Answer:
The coefficients in the inequality \(y > 2x + 4\) are:
- Coefficient of \(x\): \(2\),
- Coefficient of \(y\): \(-1\).
If there are further specifics to clarify or adjust about my response or if you have another question, please let me know!
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