Problem Bank | IB Math AASL

[Maximum mark: 7]

Consider the function f(x)=logax. The following table shows some values of x and f(x).

x		0.2		25
f(x)	3		−1	−2

1. Show that a=51.
  [1]
2. Find the missing values in the table.
  [2]
Sketch the graph of y=f(x) on the axes below, indicating clearly any axes intercepts.
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[2]
Determine the transformation which maps the graph of y=f(x) onto the graph of log5x.
[2]

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