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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

f(x+h)-f(x)= 2h
2h/h= h?

  • math -

    everything looks good until the last line.

    I believe 2h/h = 2, no?

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