If we want more clarity, we can form a table of values with some random values of x and substitute each of them in the given function to compute the y-values. So the curve would be increasing.įor domain: x + 1 > 0 ⇒ x > -1. If the base > 1, then the curve is increasing and if 0 1. So the range of f(x) is R.īefore drawing a log function graph, just have an idea of whether you get an increasing curve or decreasing curve as the answer.
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