Determine whether the lines through each pair of points are parallel, perpendicular, or neither. \( (-2,-13) \) and \( (0,-5)(0,-7) \) and \( (4,-6) \) Parallel Perpendicular Neither
Real Tutor Solution
Answer
Solution
Reviewed and approved by the UpStudy tutoring team
Mind Expander
To determine the relationship between the lines, we first find their slopes. The slope \( m \) between two points \( (x_1, y_1) \) and \( (x_2, y_2) \) can be calculated using the formula: \[ m = \frac{y_2 - y_1}{x_2 - x_1} \] For the points \( (-2,-13) \) and \( (0,-5) \): \[ m_1 = \frac{-5 - (-13)}{0 - (-2)} = \frac{8}{2} = 4 \] For the points \( (0,-7) \) and \( (4,-6) \): \[ m_2 = \frac{-6 - (-7)}{4 - 0} = \frac{1}{4} \] Now, we compare the slopes: - Lines are **parallel** if their slopes are equal (\( m_1 = m_2 \)). - Lines are **perpendicular** if the product of their slopes equals -1 (\( m_1 \cdot m_2 = -1 \)). Calculating the product of the slopes: \[ m_1 \cdot m_2 = 4 \cdot \frac{1}{4} = 1 \] Since the slopes are neither equal nor do they multiply to -1, the lines through these pairs of points are **neither parallel nor perpendicular**.