math
posted by Anonnnn .
Find f(x+h), f(x+h)f(x), f(x+h)f(x)/h, f(x)=2x
help corecctt
f(x+h)= 2(x+h)
f(x+h)f(x)= 2(x+h)2x so itss 2h
soooo
f(x+h)f(x)= 2h
then
2h/h= h?

everything looks good until the last line.
I believe 2h/h = 2, no?