IDNLearn.com provides a reliable platform for finding accurate and timely answers. Ask any question and get a thorough, accurate answer from our community of experienced professionals.
Sagot :
To determine which points lie below the line defined by the inequality [tex]\( y < 0.5x + 2 \)[/tex], we need to evaluate each point and check if they satisfy the inequality.
Let's analyze each point step-by-step:
1. For the point [tex]\((-3, -2)\)[/tex]:
- Substitute [tex]\( x = -3 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-3) + 2 = -1.5 + 2 = 0.5 \][/tex]
- Check if [tex]\(-2 < 0.5\)[/tex]:
[tex]\[ -2 < 0.5 \quad \text{(True)} \][/tex]
So, [tex]\((-3, -2)\)[/tex] satisfies the inequality.
2. For the point [tex]\((-2, 1)\)[/tex]:
- Substitute [tex]\( x = -2 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-2) + 2 = -1 + 2 = 1 \][/tex]
- Check if [tex]\(1 < 1\)[/tex]:
[tex]\[ 1 < 1 \quad \text{(False)} \][/tex]
So, [tex]\((-2, 1)\)[/tex] does not satisfy the inequality.
3. For the point [tex]\((-1, -2)\)[/tex]:
- Substitute [tex]\( x = -1 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-1) + 2 = -0.5 + 2 = 1.5 \][/tex]
- Check if [tex]\(-2 < 1.5\)[/tex]:
[tex]\[ -2 < 1.5 \quad \text{(True)} \][/tex]
So, [tex]\((-1, -2)\)[/tex] satisfies the inequality.
4. For the point [tex]\((-1, 2)\)[/tex]:
- Substitute [tex]\( x = -1 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-1) + 2 = -0.5 + 2 = 1.5 \][/tex]
- Check if [tex]\(2 < 1.5\)[/tex]:
[tex]\[ 2 < 1.5 \quad \text{(False)} \][/tex]
So, [tex]\((-1, 2)\)[/tex] does not satisfy the inequality.
5. For the point [tex]\((4, -2)\)[/tex]:
- Substitute [tex]\( x = 4 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(4) + 2 = 2 + 2 = 4 \][/tex]
- Check if [tex]\(-2 < 4\)[/tex]:
[tex]\[ -2 < 4 \quad \text{(True)} \][/tex]
So, [tex]\((4, -2)\)[/tex] satisfies the inequality.
Thus, the three points that satisfy the inequality [tex]\( y < 0.5x + 2 \)[/tex] are:
[tex]\[ (-3, -2), (-1, -2), \text{and } (4, -2) \][/tex]
Let's analyze each point step-by-step:
1. For the point [tex]\((-3, -2)\)[/tex]:
- Substitute [tex]\( x = -3 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-3) + 2 = -1.5 + 2 = 0.5 \][/tex]
- Check if [tex]\(-2 < 0.5\)[/tex]:
[tex]\[ -2 < 0.5 \quad \text{(True)} \][/tex]
So, [tex]\((-3, -2)\)[/tex] satisfies the inequality.
2. For the point [tex]\((-2, 1)\)[/tex]:
- Substitute [tex]\( x = -2 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-2) + 2 = -1 + 2 = 1 \][/tex]
- Check if [tex]\(1 < 1\)[/tex]:
[tex]\[ 1 < 1 \quad \text{(False)} \][/tex]
So, [tex]\((-2, 1)\)[/tex] does not satisfy the inequality.
3. For the point [tex]\((-1, -2)\)[/tex]:
- Substitute [tex]\( x = -1 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-1) + 2 = -0.5 + 2 = 1.5 \][/tex]
- Check if [tex]\(-2 < 1.5\)[/tex]:
[tex]\[ -2 < 1.5 \quad \text{(True)} \][/tex]
So, [tex]\((-1, -2)\)[/tex] satisfies the inequality.
4. For the point [tex]\((-1, 2)\)[/tex]:
- Substitute [tex]\( x = -1 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(-1) + 2 = -0.5 + 2 = 1.5 \][/tex]
- Check if [tex]\(2 < 1.5\)[/tex]:
[tex]\[ 2 < 1.5 \quad \text{(False)} \][/tex]
So, [tex]\((-1, 2)\)[/tex] does not satisfy the inequality.
5. For the point [tex]\((4, -2)\)[/tex]:
- Substitute [tex]\( x = 4 \)[/tex] into [tex]\( 0.5x + 2 \)[/tex]:
[tex]\[ y = 0.5(4) + 2 = 2 + 2 = 4 \][/tex]
- Check if [tex]\(-2 < 4\)[/tex]:
[tex]\[ -2 < 4 \quad \text{(True)} \][/tex]
So, [tex]\((4, -2)\)[/tex] satisfies the inequality.
Thus, the three points that satisfy the inequality [tex]\( y < 0.5x + 2 \)[/tex] are:
[tex]\[ (-3, -2), (-1, -2), \text{and } (4, -2) \][/tex]
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. Your questions deserve accurate answers. Thank you for visiting IDNLearn.com, and see you again for more solutions.