Welcome to Westonci.ca, your one-stop destination for finding answers to all your questions. Join our expert community now! Explore our Q&A platform to find reliable answers from a wide range of experts in different fields. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.
Sagot :
To graph the inequality [tex]\( y + 2 > -3x - 3 \)[/tex], follow these steps:
### Step 1: Rearrange the Inequality
First, let's rearrange the inequality into slope-intercept form ([tex]\(y > mx + b\)[/tex]).
Given inequality:
[tex]\[ y + 2 > -3x - 3 \][/tex]
Subtract 2 from both sides to isolate [tex]\(y\)[/tex]:
[tex]\[ y > -3x - 3 - 2 \][/tex]
[tex]\[ y > -3x - 5 \][/tex]
### Step 2: Identify the Boundary Line
Next, we identify the boundary line, which is given by the equality part of the inequality, [tex]\( y = -3x - 5 \)[/tex].
- Slope ([tex]\(m\)[/tex]): The coefficient of [tex]\(x\)[/tex] is [tex]\(-3\)[/tex].
- Y-intercept ([tex]\(b\)[/tex]): The constant term is [tex]\(-5\)[/tex].
### Step 3: Plot the Boundary Line
Plot the boundary line [tex]\( y = -3x - 5 \)[/tex]:
1. Start at the y-intercept [tex]\((0, -5)\)[/tex].
2. Use the slope to find another point on the line. Since the slope is [tex]\(-3\)[/tex], it means we go down 3 units for every 1 unit we move to the right.
- From [tex]\((0, -5)\)[/tex], move right 1 unit to [tex]\((1, -5)\)[/tex], and down 3 units to [tex]\((1, -8)\)[/tex].
3. Draw a dashed line through these points because the inequality is strict ([tex]\(>\)[/tex]), and not [tex]\(\geq\)[/tex].
### Step 4: Shade the Correct Region
The inequality [tex]\( y > -3x - 5 \)[/tex] indicates that the region above the line should be shaded. This is because we are looking for all points [tex]\( (x, y) \)[/tex] where the [tex]\( y \)[/tex]-coordinate is greater than the value of [tex]\(-3x - 5\)[/tex].
### Step 5: Determine the Correct Graph
Compare your graph with the given choices:
- Graph A: Shows a different slope or intercept.
- Graph B: Shows shading below the line ([tex]\(< \)[/tex]).
- Graph C: Shows the line [tex]\( y = -3x - 5 \)[/tex] with shading above the line.
- Graph D: Shows a different slope or intercept.
The graph that matches the line [tex]\( y = -3x - 5 \)[/tex] with shading above the line is Graph C.
### Answer:
C. Graph C
### Step 1: Rearrange the Inequality
First, let's rearrange the inequality into slope-intercept form ([tex]\(y > mx + b\)[/tex]).
Given inequality:
[tex]\[ y + 2 > -3x - 3 \][/tex]
Subtract 2 from both sides to isolate [tex]\(y\)[/tex]:
[tex]\[ y > -3x - 3 - 2 \][/tex]
[tex]\[ y > -3x - 5 \][/tex]
### Step 2: Identify the Boundary Line
Next, we identify the boundary line, which is given by the equality part of the inequality, [tex]\( y = -3x - 5 \)[/tex].
- Slope ([tex]\(m\)[/tex]): The coefficient of [tex]\(x\)[/tex] is [tex]\(-3\)[/tex].
- Y-intercept ([tex]\(b\)[/tex]): The constant term is [tex]\(-5\)[/tex].
### Step 3: Plot the Boundary Line
Plot the boundary line [tex]\( y = -3x - 5 \)[/tex]:
1. Start at the y-intercept [tex]\((0, -5)\)[/tex].
2. Use the slope to find another point on the line. Since the slope is [tex]\(-3\)[/tex], it means we go down 3 units for every 1 unit we move to the right.
- From [tex]\((0, -5)\)[/tex], move right 1 unit to [tex]\((1, -5)\)[/tex], and down 3 units to [tex]\((1, -8)\)[/tex].
3. Draw a dashed line through these points because the inequality is strict ([tex]\(>\)[/tex]), and not [tex]\(\geq\)[/tex].
### Step 4: Shade the Correct Region
The inequality [tex]\( y > -3x - 5 \)[/tex] indicates that the region above the line should be shaded. This is because we are looking for all points [tex]\( (x, y) \)[/tex] where the [tex]\( y \)[/tex]-coordinate is greater than the value of [tex]\(-3x - 5\)[/tex].
### Step 5: Determine the Correct Graph
Compare your graph with the given choices:
- Graph A: Shows a different slope or intercept.
- Graph B: Shows shading below the line ([tex]\(< \)[/tex]).
- Graph C: Shows the line [tex]\( y = -3x - 5 \)[/tex] with shading above the line.
- Graph D: Shows a different slope or intercept.
The graph that matches the line [tex]\( y = -3x - 5 \)[/tex] with shading above the line is Graph C.
### Answer:
C. Graph C
Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We're here to help at Westonci.ca. Keep visiting for the best answers to your questions.