Determine if the lines that pass through the given points are parallel, perpendicular or neither. line a: (-8, 8) and (-5, 10) line b: (-7, 12) and (-5. 15)

The equation of the line passing through the points and is

Then

1) the equation of line A is

2) the equation of line B is

Since then lines are not perpendicular.

Since then lines are not parallel.

neither parallel, nor perpendicular

Lines A and B are neither parallel nor perpendicular lines.

Step-by-step explanation:

For two lines,

if their slopes are equal then the lines are parallel; and

if the slope of one line is the negative reciprocal of the slope of the other line, then the two lines are equal.

Finding the slopes of line A and B:

and neither they are the negative reciprocal of each other so the lines A and B are neither parallel nor perpendicular lines.

if x = 1, then the answer is 3.5

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.