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Determine whether the lines passing through the pairs of points are parallel, perpendicular, or neither.

- Line [tex]\( a \)[/tex]: [tex]\((-5, 2)\)[/tex] and [tex]\((1, 6)\)[/tex]
- Line [tex]\( b \)[/tex]: [tex]\((-4, -2)\)[/tex] and [tex]\((2, 2)\)[/tex]

Select one:
A. Perpendicular
B. Neither
C. Parallel


Sagot :

Let's determine the relationship between the lines that pass through the given points.

### Step 1: Find the slope of each line

The slope of a line passing through two points [tex]\((x_1, y_1)\)[/tex] and [tex]\((x_2, y_2)\)[/tex] is given by the formula:
[tex]\[ \text{slope} = \frac{y_2 - y_1}{x_2 - x_1} \][/tex]

#### Line [tex]\(a\)[/tex]
Points: [tex]\((-5, 2)\)[/tex] and [tex]\((1, 6)\)[/tex]

Calculate the slope:
[tex]\[ \text{slope}_a = \frac{6 - 2}{1 - (-5)} = \frac{4}{1 + 5} = \frac{4}{6} = \frac{2}{3} \][/tex]

#### Line [tex]\(b\)[/tex]
Points: [tex]\((-4, -2)\)[/tex] and [tex]\((2, 2)\)[/tex]

Calculate the slope:
[tex]\[ \text{slope}_b = \frac{2 - (-2)}{2 - (-4)} = \frac{2 + 2}{2 + 4} = \frac{4}{6} = \frac{2}{3} \][/tex]

### Step 2: Compare the slopes to determine the relationship

1. Parallel lines: Two lines are parallel if their slopes are equal.
2. Perpendicular lines: Two lines are perpendicular if the product of their slopes is [tex]\(-1\)[/tex].
3. Neither: If neither condition is met, then the lines are neither parallel nor perpendicular.

#### Check for parallel lines:
Since [tex]\(\text{slope}_a = \text{slope}_b = \frac{2}{3}\)[/tex], the slopes are equal.

Hence, the two lines are parallel.

### Final Answer:
[tex]\[ \boxed{\text{Parallel}} \][/tex]