Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.

y = –1/4x + 10
-2x + 8y = 6
A. parallel
B. perpendicular
C. neither

1 answer

To determine whether the lines are parallel, perpendicular, or neither, we need to compare the slopes of the lines.

For the first equation, y = -1/4x + 10, the slope is -1/4.

For the second equation, -2x + 8y = 6, we need to solve for y in order to find the slope-intercept form.

Rearranging the equation, we get:

8y = 2x + 6

y = 1/4x + 3/4

The slope of the second equation is 1/4.

Since the slopes are negative reciprocals of each other (-1/4 and 1/4), the lines are perpendicular.

Thus, the answer is B. perpendicular.