Question

Which best describes the relationship between the line that passes through the points (-9, -7) and (-12, -2) and the line

that passes through the points (1, 9) and (6, 6)?
A. neither perpendicular nor parallel
B. perpendicular
C. same line
OD. parallel

Answer 1

A

Explanation:

The equation of the line that passes through the points (-9,-7) and (-12,-2) is

y = -5/3x-22

and

equation of the line that passes through the points (1, 9) and (6, 6) is

y = -3/5x+48/5

clearly it is not the same line,

`(-5)/(3).(-3)/(5) \\eq -1` (lines are not perpendicular)

`(-5)/(3)\\eq (-3)/(5)` (not parallel)