The slope that is perpendicular to m = 5/8 is given by; m' = -8/5
- When dealing with slope - intercept form of equation of a line, the general equation is;
y = mx + c
where;
m is the slope
c is the y-intercept
- Now, for a line to be perpendicular to a line above that has it's slope as m, the slope of this new line will be the negative inverse of the first slope. This is; m' = -1/m
- Applying that to our question, it means the slope that is perpendicular to m = 5/8 is; m' = -1/(5/8) = -8/5
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