book Maths Puzzle Numerical Ability

if line a has a slope of -3/8 then what is the slope of a line perpendicular to a?
i got 8/3
is that right? thanks!

Read Solution (Total 0)

book Other Question

Why do mathmagicians use the letter m for slope in the function y=mx+b? a line passes through a(1,-3) and b(2,7)
write the equation of a line perpendicular to a. how would you go about solving this problem?