Answer:
The slope of a line perpendicular to the line whose equation is 6x+3y=-63 will be: 1/2
Explanation:
We know that the slope intercept-form of the line equation is

where m is the slope and b is the y-intercept
Given the equation

simplifying the equation to write in the slope-intercept form

Thus, the slope = -2
As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line, so
The slope of the perpendicular line will be:

Therefore, the slope of a line perpendicular to the line whose equation is 6x+3y=-63 will be: 1/2