Question 16

Section A · 1 mark 18% correct

The question in our own words · page 9

Let \(h(x)=a\log_e(bx)\), where \(a\) and \(b\) are non-zero real numbers. The derivative \(h'(x)\) has range \((0,\infty)\). Which of these has to be true?

  1. A\(a>0\), with no condition on \(b\)
  2. B\(a>0\) and \(b\lt 0\)
  3. C\(a>0\) and \(b>0\)
  4. D\(ab>0\)
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