Question

Find the slope of a line perpendicular to 3x - y = 4

Answer 1

Answer:

-1/3

Step-by-step explanation:

Write the equation in a slope intercept form,

y= mx +b , where m = slope, b = y-intercept.

3x - y = 4, subtract 3x from both sides

     -y = -3x +4 , multiply both sides by -1

      y = 3x - 4, here slope = 3 and y-intercept = -4

Perpendicular lines have their slopes negative reciprocal so the slope of a line perpendicular to 3x - y = 4 also written as y = 3x -4 is m= -1/3