Which of the following ordered pairs is a solution to the inequality [tex]\( y \ \textgreater \ \frac{1}{2} x + 5 \)[/tex]?

A. [tex]\((10, 9)\)[/tex]

B. [tex]\((8, 10)\)[/tex]

C. [tex]\((4, 6)\)[/tex]

D. [tex]\((2, 6)\)[/tex]



Answer :

To determine which of the given ordered pairs satisfies the inequality [tex]\( y > \frac{1}{2} x + 5 \)[/tex], we'll test each pair individually by substituting the [tex]\(x\)[/tex] and [tex]\(y\)[/tex] values into the inequality.

1. Test the pair [tex]\((10, 9)\)[/tex]:
[tex]\[ \text{Substitute } x = 10 \text{ and } y = 9 \text{ into the inequality } y > \frac{1}{2} x + 5. \][/tex]
[tex]\[ 9 > \frac{1}{2} \cdot 10 + 5 \][/tex]
[tex]\[ 9 > 5 + 5 \][/tex]
[tex]\[ 9 > 10 \quad \text{(False)} \][/tex]
So, the pair [tex]\((10, 9)\)[/tex] does not satisfy the inequality.

2. Test the pair [tex]\((8, 10)\)[/tex]:
[tex]\[ \text{Substitute } x = 8 \text{ and } y = 10 \text{ into the inequality } y > \frac{1}{2} x + 5. \][/tex]
[tex]\[ 10 > \frac{1}{2} \cdot 8 + 5 \][/tex]
[tex]\[ 10 > 4 + 5 \][/tex]
[tex]\[ 10 > 9 \quad \text{(True)} \][/tex]
So, the pair [tex]\((8, 10)\)[/tex] satisfies the inequality.

3. Test the pair [tex]\((4, 6)\)[/tex]:
[tex]\[ \text{Substitute } x = 4 \text{ and } y = 6 \text{ into the inequality } y > \frac{1}{2} x + 5. \][/tex]
[tex]\[ 6 > \frac{1}{2} \cdot 4 + 5 \][/tex]
[tex]\[ 6 > 2 + 5 \][/tex]
[tex]\[ 6 > 7 \quad \text{(False)} \][/tex]
So, the pair [tex]\((4, 6)\)[/tex] does not satisfy the inequality.

4. Test the pair [tex]\((2, 6)\)[/tex]:
[tex]\[ \text{Substitute } x = 2 \text{ and } y = 6 \text{ into the inequality } y > \frac{1}{2} x + 5. \][/tex]
[tex]\[ 6 > \frac{1}{2} \cdot 2 + 5 \][/tex]
[tex]\[ 6 > 1 + 5 \][/tex]
[tex]\[ 6 > 6 \quad \text{(False)} \][/tex]
So, the pair [tex]\((2, 6)\)[/tex] does not satisfy the inequality.

After evaluating each of the ordered pairs, the pair that satisfies the inequality [tex]\( y > \frac{1}{2} x + 5 \)[/tex] is [tex]\((8, 10)\)[/tex].