Answer:
3y + 4x = 39
Step-by-step explanation:
The formula for calculating the equation of a line in point-slope form is expressed as:

where;
m is the slope
(x0, y0) is the point on the line
Get the slope of the required line
Given the equation of the line 3x - 4y = 8
Rewrite in standard form
-4y = -3x + 8
y = -3x/-4 + -8/4
y = 3/4 x - 2
The slope of the given line is 3/4
If the equation of the required line is perpendicular to the given line, hence the slope of the required will be:

Get the equation of the required line:

Hence the required equation of the line is 3y + 4x = 39