The function
... f(x) = (x+2)/(x-1) = 1 + 3/(x-1)
is symmetrical about the line y=x, hence is its own inverse.
We can evaluate the desired derivative directly.
... f'(x) -3/(x-1)²
so f'(2) is
... f'(2) = -3/(2-1)²
A gym membership cost $19 each month. If Miss Lacey joins the gym for one year, will she pay more or less than $190? Explain you
1 answer:
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